- What I did

Add a docker app image tag command

$ docker image tag --help

Usage:  docker image tag SOURCE_APP_IMAGE[:TAG] TARGET_APP_IMAGE[:TAG]

Create a tag TARGET_APP_IMAGE that refers to SOURCE_APP_IMAGE

Also two small fixup on tests and insecureRegistriesFromEngine.

- How I did it

Read a bundle from the bundle store and store it again on a new reference.

- How to verify it

A complete scenario is provided as end to end test and some unit tests are covering the command.

To verify it locally, by hand:

bundle an image with a tag and be sure the image exists in the store

docker app bundle --tag hello-world example-hello-world.dockerapp
```
$ docker app image ls
IMAGE NAME         APP NAME
hello-world:latest hello-world
```

tag the image with a new name. Without explicit tag, latest will be used

docker app image tag hello-world bonjour-monde

$ docker app image ls
IMAGE NAME           APP NAME
bonjour-monde:latest hello-world
hello-world:latest   hello-world

specify a destination tag

docker app image tag hello-world hello-world:0.1

IMAGE NAME           APP NAME
bonjour-monde:latest hello-world
hello-world:0.1      hello-world
hello-world:latest   hello-world

specify the source tag

docker app image tag hello-world:0.1 bonjour:0.3

$ docker app image ls
IMAGE NAME           APP NAME
bonjour:0.3          hello-world
bonjour-monde:latest hello-world
hello-world:0.1      hello-world
hello-world:latest   hello-world

- Description for the changelog

Add a docker app image tag command.

Codecov Report

Merging #652 into master will increase coverage by 0.17%. The diff coverage is 86.11%.

@@            Coverage Diff             @@
##           master     #652      +/-   ##
==========================================
+ Coverage   71.67%   71.85%   +0.17%     
==========================================
  Files          51       52       +1     
  Lines        2616     2643      +27     
==========================================
+ Hits         1875     1899      +24     
- Misses        498      500       +2     
- Partials      243      244       +1

Impacted Files	Coverage Δ
internal/commands/root.go	`72.11% <0%> (ø)`	:arrow_up:
internal/commands/image/command.go	`100% <100%> (ø)`	:arrow_up:
internal/commands/image/tag.go	`88.23% <88.23%> (ø)`
internal/yaml/yaml.go	`80% <0%> (-3.34%)`	:arrow_down:

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docker / app

Image tag #652

Codecov Report