mirror of
https://github.com/rcourtman/Pulse.git
synced 2026-04-28 11:30:15 +00:00
9d8f8b45b5
Docker container URL preserved on update (#1054): container updates recreate the container with a new runtime ID. The agent now includes {oldContainerId, newContainerId} in the completion ACK payload; the server uses this to copy persisted metadata (custom URLs, descriptions, tags) to the new ID so nothing is lost. Migration is a copy, not a move, so rollback scenarios still find metadata under the original ID. Reduce metrics.db write amplification (#1124): add a UNIQUE index on (resource_type, resource_id, metric_type, timestamp, tier) so rollup reprocessing after a failed checkpoint uses INSERT OR IGNORE instead of creating duplicate rows. Existing duplicates are deduplicated once on startup if the index creation would otherwise fail. Also sets wal_autocheckpoint(500) to checkpoint the WAL more frequently, preventing unbounded WAL growth. Fixes #1054 Fixes #1124
621 lines
19 KiB
Go
621 lines
19 KiB
Go
package dockeragent
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import (
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"context"
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"encoding/json"
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"errors"
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"io"
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"net/http"
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"net/http/httptest"
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"strings"
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"sync"
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"testing"
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"time"
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containertypes "github.com/docker/docker/api/types/container"
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"github.com/docker/docker/api/types/image"
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"github.com/docker/docker/api/types/network"
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"github.com/opencontainers/image-spec/specs-go/v1"
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agentsdocker "github.com/rcourtman/pulse-go-rewrite/pkg/agents/docker"
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"github.com/rs/zerolog"
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)
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func baseInspect() containertypes.InspectResponse {
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state := &containertypes.State{Running: true}
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hostConfig := &containertypes.HostConfig{}
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return containertypes.InspectResponse{
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ContainerJSONBase: &containertypes.ContainerJSONBase{
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Name: "/app",
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Image: "sha256:old0000000000",
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State: state,
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RestartCount: 1,
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HostConfig: hostConfig,
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},
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Config: &containertypes.Config{
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Image: "nginx:latest",
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},
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NetworkSettings: &containertypes.NetworkSettings{
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Networks: map[string]*network.EndpointSettings{
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"net1": {Aliases: []string{"app"}},
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"net2": {Aliases: []string{"app2"}},
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},
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},
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}
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}
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func TestUpdateContainer_Errors(t *testing.T) {
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logger := zerolog.Nop()
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t.Run("inspect error", func(t *testing.T) {
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agent := &Agent{
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docker: &fakeDockerClient{
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containerInspectFn: func(context.Context, string) (containertypes.InspectResponse, error) {
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return containertypes.InspectResponse{}, errors.New("inspect failed")
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},
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},
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logger: logger,
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}
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result := agent.updateContainerWithProgress(context.Background(), "container1", nil)
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if result.Error == "" {
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t.Fatal("expected error for inspect failure")
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}
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})
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t.Run("pull error", func(t *testing.T) {
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agent := &Agent{
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docker: &fakeDockerClient{
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containerInspectFn: func(context.Context, string) (containertypes.InspectResponse, error) {
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return baseInspect(), nil
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},
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imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
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return nil, errors.New("pull failed")
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},
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},
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logger: logger,
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}
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result := agent.updateContainerWithProgress(context.Background(), "container1", nil)
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if result.Error == "" {
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t.Fatal("expected error for pull failure")
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}
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})
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t.Run("stop error", func(t *testing.T) {
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agent := &Agent{
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docker: &fakeDockerClient{
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containerInspectFn: func(context.Context, string) (containertypes.InspectResponse, error) {
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return baseInspect(), nil
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},
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imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
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return io.NopCloser(strings.NewReader("{}")), nil
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},
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containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
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return errors.New("stop failed")
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},
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},
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logger: logger,
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}
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result := agent.updateContainerWithProgress(context.Background(), "container1", nil)
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if result.Error == "" {
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t.Fatal("expected error for stop failure")
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}
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})
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t.Run("rename error", func(t *testing.T) {
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startCalled := false
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agent := &Agent{
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docker: &fakeDockerClient{
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containerInspectFn: func(context.Context, string) (containertypes.InspectResponse, error) {
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return baseInspect(), nil
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},
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imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
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return io.NopCloser(strings.NewReader("{}")), nil
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},
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containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
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return nil
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},
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containerRenameFn: func(context.Context, string, string) error {
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return errors.New("rename failed")
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},
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containerStartFn: func(context.Context, string, containertypes.StartOptions) error {
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startCalled = true
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return nil
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},
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},
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logger: logger,
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}
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result := agent.updateContainerWithProgress(context.Background(), "container1", nil)
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if result.Error == "" {
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t.Fatal("expected error for rename failure")
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}
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if !startCalled {
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t.Fatal("expected original container to be restarted")
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}
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})
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t.Run("create error", func(t *testing.T) {
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renameCalled := false
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startCalled := false
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agent := &Agent{
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docker: &fakeDockerClient{
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containerInspectFn: func(context.Context, string) (containertypes.InspectResponse, error) {
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return baseInspect(), nil
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},
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imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
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return io.NopCloser(strings.NewReader("{}")), nil
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},
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containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
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return nil
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},
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containerRenameFn: func(context.Context, string, string) error {
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renameCalled = true
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return nil
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},
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containerCreateFn: func(context.Context, *containertypes.Config, *containertypes.HostConfig, *network.NetworkingConfig, *v1.Platform, string) (containertypes.CreateResponse, error) {
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return containertypes.CreateResponse{}, errors.New("create failed")
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},
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containerStartFn: func(context.Context, string, containertypes.StartOptions) error {
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startCalled = true
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return nil
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},
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},
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logger: logger,
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}
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result := agent.updateContainerWithProgress(context.Background(), "container1", nil)
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if result.Error == "" {
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t.Fatal("expected error for create failure")
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}
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if !renameCalled || !startCalled {
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t.Fatal("expected rollback to rename and restart")
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}
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})
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t.Run("start error", func(t *testing.T) {
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removed := false
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renamed := false
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restarted := false
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agent := &Agent{
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docker: &fakeDockerClient{
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containerInspectFn: func(context.Context, string) (containertypes.InspectResponse, error) {
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return baseInspect(), nil
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},
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imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
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return io.NopCloser(strings.NewReader("{}")), nil
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},
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containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
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return nil
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},
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containerCreateFn: func(context.Context, *containertypes.Config, *containertypes.HostConfig, *network.NetworkingConfig, *v1.Platform, string) (containertypes.CreateResponse, error) {
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return containertypes.CreateResponse{ID: "new123"}, nil
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},
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containerStartFn: func(_ context.Context, id string, _ containertypes.StartOptions) error {
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if id == "new123" {
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return errors.New("start failed")
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}
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restarted = true
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return nil
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},
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containerRemoveFn: func(context.Context, string, containertypes.RemoveOptions) error {
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removed = true
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return nil
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},
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containerRenameFn: func(context.Context, string, string) error {
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renamed = true
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return nil
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},
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},
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logger: logger,
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}
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result := agent.updateContainerWithProgress(context.Background(), "container1", nil)
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if result.Error == "" {
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t.Fatal("expected error for start failure")
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}
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if !removed || !renamed || !restarted {
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t.Fatal("expected rollback cleanup")
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}
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})
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}
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func TestUpdateContainer_Success(t *testing.T) {
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logger := zerolog.Nop()
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swap(t, &sleepFn, func(time.Duration) {})
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swap(t, &nowFn, func() time.Time {
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return time.Date(2024, 3, 1, 12, 0, 0, 0, time.UTC)
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})
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var (
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mu sync.Mutex
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cleanupCalls int
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cleanupErr error
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cleanupCh = make(chan struct{})
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)
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agent := &Agent{
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docker: &fakeDockerClient{
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containerInspectFn: func(_ context.Context, id string) (containertypes.InspectResponse, error) {
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if id == "new123" {
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inspect := baseInspect()
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inspect.ContainerJSONBase.Image = "sha256:new0000000000"
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return inspect, nil
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}
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return baseInspect(), nil
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},
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imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
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return io.NopCloser(strings.NewReader("{}")), nil
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},
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containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
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return nil
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},
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containerRenameFn: func(context.Context, string, string) error {
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return nil
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},
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containerCreateFn: func(context.Context, *containertypes.Config, *containertypes.HostConfig, *network.NetworkingConfig, *v1.Platform, string) (containertypes.CreateResponse, error) {
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return containertypes.CreateResponse{ID: "new123"}, nil
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},
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networkConnectFn: func(context.Context, string, string, *network.EndpointSettings) error {
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return errors.New("network connect failed")
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},
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containerStartFn: func(context.Context, string, containertypes.StartOptions) error {
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return nil
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},
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containerRemoveFn: func(context.Context, string, containertypes.RemoveOptions) error {
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mu.Lock()
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cleanupCalls++
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err := cleanupErr
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mu.Unlock()
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close(cleanupCh)
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return err
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},
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},
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logger: logger,
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}
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result := agent.updateContainerWithProgress(context.Background(), "container1", nil)
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if !result.Success {
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t.Fatalf("expected success, got error %q", result.Error)
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}
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if !result.BackupCreated || result.BackupContainer == "" {
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t.Fatalf("expected backup to be created")
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}
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if result.NewImageDigest == "" {
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t.Fatalf("expected new image digest")
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}
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<-cleanupCh
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mu.Lock()
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if cleanupCalls != 1 {
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t.Fatalf("expected cleanup to be called once, got %d", cleanupCalls)
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}
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mu.Unlock()
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}
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func TestUpdateContainer_CleanupError(t *testing.T) {
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logger := zerolog.Nop()
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swap(t, &sleepFn, func(time.Duration) {})
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swap(t, &nowFn, func() time.Time {
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return time.Date(2024, 3, 1, 12, 0, 0, 0, time.UTC)
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})
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cleanupErr := errors.New("cleanup failed")
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done := make(chan struct{})
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agent := &Agent{
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docker: &fakeDockerClient{
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containerInspectFn: func(_ context.Context, id string) (containertypes.InspectResponse, error) {
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if id == "new123" {
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inspect := baseInspect()
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inspect.ContainerJSONBase.Image = "sha256:new0000000000"
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return inspect, nil
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}
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return baseInspect(), nil
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},
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imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
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return io.NopCloser(strings.NewReader("{}")), nil
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},
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containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
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return nil
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},
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containerRenameFn: func(context.Context, string, string) error {
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return nil
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},
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containerCreateFn: func(context.Context, *containertypes.Config, *containertypes.HostConfig, *network.NetworkingConfig, *v1.Platform, string) (containertypes.CreateResponse, error) {
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return containertypes.CreateResponse{ID: "new123"}, nil
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},
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containerStartFn: func(context.Context, string, containertypes.StartOptions) error {
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return nil
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},
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containerRemoveFn: func(context.Context, string, containertypes.RemoveOptions) error {
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close(done)
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return cleanupErr
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},
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},
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logger: logger,
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}
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result := agent.updateContainerWithProgress(context.Background(), "container1", nil)
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if !result.Success {
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t.Fatalf("expected success, got error %q", result.Error)
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}
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<-done
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}
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func TestHandleUpdateContainerCommand(t *testing.T) {
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logger := zerolog.Nop()
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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}))
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defer server.Close()
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agent := &Agent{
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logger: logger,
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hostID: "host1",
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httpClients: map[bool]*http.Client{
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false: server.Client(),
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},
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docker: &fakeDockerClient{
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containerInspectFn: func(_ context.Context, id string) (containertypes.InspectResponse, error) {
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inspect := baseInspect()
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if id == "new123" {
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inspect.ContainerJSONBase.Image = "sha256:new0000000000"
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}
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return inspect, nil
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},
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imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
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return io.NopCloser(strings.NewReader("{}")), nil
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},
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containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
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return nil
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},
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containerRenameFn: func(context.Context, string, string) error {
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return nil
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},
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containerCreateFn: func(context.Context, *containertypes.Config, *containertypes.HostConfig, *network.NetworkingConfig, *v1.Platform, string) (containertypes.CreateResponse, error) {
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return containertypes.CreateResponse{ID: "new123"}, nil
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},
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containerStartFn: func(context.Context, string, containertypes.StartOptions) error {
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return nil
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},
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},
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}
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command := agentsdocker.Command{
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ID: "cmd1",
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Type: agentsdocker.CommandTypeUpdateContainer,
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Payload: map[string]any{
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"containerId": "container1",
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},
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}
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if err := agent.handleUpdateContainerCommand(context.Background(), TargetConfig{URL: server.URL}, command); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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t.Run("missing container id", func(t *testing.T) {
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if err := agent.handleUpdateContainerCommand(context.Background(), TargetConfig{URL: server.URL}, agentsdocker.Command{ID: "cmd2"}); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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})
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t.Run("missing container id ack failure", func(t *testing.T) {
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if err := agent.handleUpdateContainerCommand(context.Background(), TargetConfig{URL: "http://example.com/\x7f"}, agentsdocker.Command{ID: "cmd2c"}); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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})
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t.Run("container id wrong type", func(t *testing.T) {
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cmd := agentsdocker.Command{
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ID: "cmd2b",
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Type: agentsdocker.CommandTypeUpdateContainer,
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Payload: map[string]any{
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"containerId": 123,
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},
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}
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if err := agent.handleUpdateContainerCommand(context.Background(), TargetConfig{URL: server.URL}, cmd); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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})
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t.Run("ack error stops early", func(t *testing.T) {
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badTarget := TargetConfig{URL: "http://example.com/\x7f"}
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agent.hostID = "host1"
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cmd := agentsdocker.Command{
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ID: "cmd3",
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Type: agentsdocker.CommandTypeUpdateContainer,
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Payload: map[string]any{
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"containerId": "container1",
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},
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}
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if err := agent.handleUpdateContainerCommand(context.Background(), badTarget, cmd); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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})
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t.Run("update failure sends failed ack", func(t *testing.T) {
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var ack agentsdocker.CommandAck
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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body, _ := io.ReadAll(r.Body)
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_ = json.Unmarshal(body, &ack)
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w.WriteHeader(http.StatusOK)
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}))
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defer server.Close()
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agent := &Agent{
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logger: zerolog.Nop(),
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hostID: "host1",
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httpClients: map[bool]*http.Client{
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false: server.Client(),
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},
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docker: &fakeDockerClient{
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containerInspectFn: func(context.Context, string) (containertypes.InspectResponse, error) {
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return containertypes.InspectResponse{}, errors.New("inspect failed")
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},
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},
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}
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|
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cmd := agentsdocker.Command{
|
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ID: "cmd4",
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Type: agentsdocker.CommandTypeUpdateContainer,
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Payload: map[string]any{
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"containerId": "container1",
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},
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}
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|
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if err := agent.handleUpdateContainerCommand(context.Background(), TargetConfig{URL: server.URL, Token: "token"}, cmd); err != nil {
|
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t.Fatalf("unexpected error: %v", err)
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}
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if ack.Status != agentsdocker.CommandStatusFailed {
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t.Fatalf("expected failed status, got %q", ack.Status)
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}
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})
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|
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t.Run("completion ack error", func(t *testing.T) {
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calls := 0
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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calls++
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if calls == 2 {
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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w.WriteHeader(http.StatusOK)
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}))
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defer server.Close()
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|
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agent := &Agent{
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logger: zerolog.Nop(),
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hostID: "host1",
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httpClients: map[bool]*http.Client{
|
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false: server.Client(),
|
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},
|
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docker: &fakeDockerClient{
|
|
containerInspectFn: func(_ context.Context, id string) (containertypes.InspectResponse, error) {
|
|
inspect := baseInspect()
|
|
if id == "new123" {
|
|
inspect.ContainerJSONBase.Image = "sha256:new0000000000"
|
|
}
|
|
return inspect, nil
|
|
},
|
|
imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
|
|
return io.NopCloser(strings.NewReader("{}")), nil
|
|
},
|
|
containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
|
|
return nil
|
|
},
|
|
containerRenameFn: func(context.Context, string, string) error {
|
|
return nil
|
|
},
|
|
containerCreateFn: func(context.Context, *containertypes.Config, *containertypes.HostConfig, *network.NetworkingConfig, *v1.Platform, string) (containertypes.CreateResponse, error) {
|
|
return containertypes.CreateResponse{ID: "new123"}, nil
|
|
},
|
|
containerStartFn: func(context.Context, string, containertypes.StartOptions) error {
|
|
return nil
|
|
},
|
|
},
|
|
}
|
|
|
|
cmd := agentsdocker.Command{
|
|
ID: "cmd5",
|
|
Type: agentsdocker.CommandTypeUpdateContainer,
|
|
Payload: map[string]any{
|
|
"containerId": "container1",
|
|
},
|
|
}
|
|
|
|
if err := agent.handleUpdateContainerCommand(context.Background(), TargetConfig{URL: server.URL, Token: "token"}, cmd); err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
})
|
|
|
|
t.Run("success ack includes container id mapping payload", func(t *testing.T) {
|
|
var (
|
|
mu sync.Mutex
|
|
acks []agentsdocker.CommandAck
|
|
)
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
body, _ := io.ReadAll(r.Body)
|
|
var ack agentsdocker.CommandAck
|
|
_ = json.Unmarshal(body, &ack)
|
|
mu.Lock()
|
|
acks = append(acks, ack)
|
|
mu.Unlock()
|
|
w.WriteHeader(http.StatusOK)
|
|
}))
|
|
defer server.Close()
|
|
|
|
agent := &Agent{
|
|
logger: zerolog.Nop(),
|
|
hostID: "host1",
|
|
httpClients: map[bool]*http.Client{
|
|
false: server.Client(),
|
|
},
|
|
docker: &fakeDockerClient{
|
|
containerInspectFn: func(_ context.Context, id string) (containertypes.InspectResponse, error) {
|
|
inspect := baseInspect()
|
|
if id == "new123" {
|
|
inspect.ContainerJSONBase.Image = "sha256:new0000000000"
|
|
}
|
|
return inspect, nil
|
|
},
|
|
imagePullFn: func(context.Context, string, image.PullOptions) (io.ReadCloser, error) {
|
|
return io.NopCloser(strings.NewReader("{}")), nil
|
|
},
|
|
containerStopFn: func(context.Context, string, containertypes.StopOptions) error {
|
|
return nil
|
|
},
|
|
containerRenameFn: func(context.Context, string, string) error {
|
|
return nil
|
|
},
|
|
containerCreateFn: func(context.Context, *containertypes.Config, *containertypes.HostConfig, *network.NetworkingConfig, *v1.Platform, string) (containertypes.CreateResponse, error) {
|
|
return containertypes.CreateResponse{ID: "new123"}, nil
|
|
},
|
|
containerStartFn: func(context.Context, string, containertypes.StartOptions) error {
|
|
return nil
|
|
},
|
|
},
|
|
}
|
|
|
|
cmd := agentsdocker.Command{
|
|
ID: "cmd6",
|
|
Type: agentsdocker.CommandTypeUpdateContainer,
|
|
Payload: map[string]any{
|
|
"containerId": "container1",
|
|
},
|
|
}
|
|
|
|
if err := agent.handleUpdateContainerCommand(context.Background(), TargetConfig{URL: server.URL, Token: "token"}, cmd); err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
|
|
mu.Lock()
|
|
defer mu.Unlock()
|
|
|
|
var completed *agentsdocker.CommandAck
|
|
for i := range acks {
|
|
if acks[i].Status == agentsdocker.CommandStatusCompleted {
|
|
completed = &acks[i]
|
|
break
|
|
}
|
|
}
|
|
if completed == nil {
|
|
t.Fatalf("expected a completed ack, got %d total acks", len(acks))
|
|
}
|
|
if completed.Payload == nil {
|
|
t.Fatalf("expected completed ack payload to be set")
|
|
}
|
|
if got, _ := completed.Payload["oldContainerId"].(string); got != "container1" {
|
|
t.Fatalf("oldContainerId = %q, want %q", got, "container1")
|
|
}
|
|
if got, _ := completed.Payload["newContainerId"].(string); got != "new123" {
|
|
t.Fatalf("newContainerId = %q, want %q", got, "new123")
|
|
}
|
|
})
|
|
}
|