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handlers: Add Volumes to v1 and v2 metadata #1531

Merged
merged 5 commits into from
Aug 22, 2018
Merged

handlers: Add Volumes to v1 and v2 metadata #1531

merged 5 commits into from
Aug 22, 2018

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sharanyad
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@sharanyad sharanyad commented Aug 20, 2018 •
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Summary

Expose volumes metadata as part of each container in task through v1 and v2 metadata endpoint.
This addresses #1516

Implementation details

new task metadata(from functional tests):

[Info] Received tasks metadata:
{
    "Tasks": [
        {
            "Arn": "arn:aws:ecs:us-west-2:074626758757:task/0353708a-6653-4bc2-9e84-ad2dcc8fe68c",
            "DesiredStatus": "RUNNING",
            "KnownStatus": "RUNNING",
            "Family": "ecsftest-agent-introspection-validator-4c0f2e0d3d9e85fd9e5ca7fdf73a3628",
            "Version": "1",
            "Containers": [
                {
                    "DockerId": "9c562697bcbeab2ce97491080d78dbeb38e64d21203417895edf1b5ce203ba24",
                    "DockerName": "ecs-ecsftest-agent-introspection-validator-4c0f2e0d3d9e85fd9e5ca7fdf73a3628-1-agent-introspection-validator-be84a5fd9680eac74b00",
                    "Name": "agent-introspection-validator",
                    "Volumes": [
                        {
                            "DockerName": "ecs-ecsftest-agent-introspection-validator-4c0f2e0d3d9e85fd9e5ca7fdf73a3628-1-task-local-bcb19ac3cc93fe8f8901",
                            "Source": "/var/lib/docker/volumes/ecs-ecsftest-agent-introspection-validator-4c0f2e0d3d9e85fd9e5ca7fdf73a3628-1-task-local-bcb19ac3cc93fe8f8901/_data",
                            "Destination": "/ecs"
                        }
                    ]
                }
            ]
        }
    ]
}

Testing

  • Builds on Linux (make release)
  • Builds on Windows (go build -out amazon-ecs-agent.exe ./agent)
  • Unit tests on Linux (make test) pass
  • Unit tests on Windows (go test -timeout=25s ./agent/...) pass
  • Integration tests on Linux (make run-integ-tests) pass
  • Integration tests on Windows (.\scripts\run-integ-tests.ps1) pass
  • Functional tests on Linux (make run-functional-tests) pass
  • Functional tests on Windows (.\scripts\run-functional-tests.ps1) pass

New tests cover the changes: yes

Description for the changelog

Licensing

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

@sharanyad sharanyad requested review from richardpen, adnxn, yhlee-aws and a team August 20, 2018 18:45
adnxn
adnxn reviewed Aug 21, 2018
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agent/api/container/container.go Outdated
@@ -190,6 +190,9 @@ type Container struct {
// KnownPortBindingsUnsafe is an array of port bindings for the container.
KnownPortBindingsUnsafe []PortBinding `json:"KnownPortBindings"`

// VolumesUnsafe is an array of volume mounts in the container.
VolumesUnsafe []docker.Mount
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correct me if im wrong: this ends up in the statefile yea? if yes - needs a statefile version bump?

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This field is not required in the statefile. Added json ignore tag.

@sharanyad sharanyad added this to the 1.20.2 milestone Aug 21, 2018
@fenxiong
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i think since we add a new field in container response, the functional test for agent introspection endpoint should be updated?

@adnxn
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adnxn commented Aug 21, 2018

agreed with @fenxiong, the functional test for introspection endpoint should be updated as well.

@sharanyad
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Updated the functional tests

richardpen
richardpen reviewed Aug 21, 2018
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agent/api/container/container.go
@@ -190,6 +190,9 @@ type Container struct {
// KnownPortBindingsUnsafe is an array of port bindings for the container.
KnownPortBindingsUnsafe []PortBinding `json:"KnownPortBindings"`

// VolumesUnsafe is an array of volume mounts in the container.
VolumesUnsafe []docker.Mount `json:"-"`
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Please update this unit test to cover this:

amazon-ecs-agent/agent/engine/docker_task_engine_test.go

Line 1923 in 02a6a9f

func TestSynchronizeContainerStatus(t *testing.T) {

agent/handlers/v1/response.go Outdated
// NewVolumesResponse creates VolumeResponse for a container
func NewVolumesResponse(dockerContainer *apicontainer.DockerContainer) []VolumeResponse {
container := dockerContainer.Container
resp := []VolumeResponse{}
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You may want to use var resp []VolumeResponse instead, as the marshal of resp := []VolumeResponse would be [] instead of null.

misc/taskmetadata-validator/taskmetadata-validator.go
@@ -243,6 +251,11 @@ func main() {
}
}

if containerMetadata.Volumes == nil {
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Can you check some of the fields that were specified in the task definition?

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the docker name and source are difficult to be verified, since the volume name is created with some task information and random ID at the end. Hence checking for nil here. Do you have other suggestions?

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I think you can test with the shared volume, which we specify the name, and the destination should be also specified in the task definition? We may not able to specify the source though.

richardpen
richardpen approved these changes Aug 21, 2018
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LGTM as long as the tests pass.

adnxn
adnxn approved these changes Aug 21, 2018
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thanks for updating the functional test

@sharanyad sharanyad merged commit f23d4de into aws:dev Aug 22, 2018
@fenxiong fenxiong mentioned this pull request Dec 4, 2018
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@yhlee-aws yhlee-aws yhlee-aws approved these changes

@richardpen richardpen richardpen approved these changes

@adnxn adnxn adnxn approved these changes

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@sharanyad @fenxiong @adnxn @richardpen @yhlee-aws