Allow passing extra build flags to podman/docker

[kadel]

/kind user-story

User Story

As an odo user running Mac with AppleSilicon, I want to be able to build images for different platforms (amd64) So that I can run them on my cluster is amd64

Acceptance Criteria

• odo deploy and odo build-images should check for ODO_IMAGE_BUILD_ARGS env variable and use it as additional arguments for podman/docker build
• odo run should check for ODO_CONTAINER_RUN_ARGS env variable and use it as additional arguments for podman/docker run
• Tests
• Documentation

ODO_IMAGE_BUILD_ARGS we should come up with a better name for this variable. As in the future, we will have in-cluster build where this variable won't make sense.

ODO_CONTAINER_RUN_ARGS come up with better name ;-)

example:

ODO_IMAGE_BUILD_ARGS="--platform linux/amd64" odo deploy should run podman build --platform linux/amd64 ...

for discussion:
Or this could also be a cli flag for odo build-images and odo deploy

/kind user-story

[rm3l]

This seems related to #6178

[rm3l]

To better separate global options from those that are specific to a Podman/Docker sub-command, I have introduced an additional env var (ODO_CONTAINER_BACKEND_GLOBAL_ARGS), which will be passed as global flags to any Podman/Docker command executed by odo.

This will be needed for example if we want to pass global options like --root and --runroot to better isolate our integration tests on Podman.

ODO_IMAGE_BUILD_ARGS will still be passed as flags specific to the podman build and docker build commands.

ODO_CONTAINER_RUN_ARGS will still be passed as flags specific to the commands creating resources, like podman play kube when running odo against Podman.

So for example, running this:

$ ODO_IMAGE_BUILD_ARGS='--platform=linux/amd64;--build-arg=MY_ARG=my_value' \
  ODO_CONTAINER_BACKEND_GLOBAL_ARGS='--root=/tmp/podman/root;--storage-driver=overlay' \
  ODO_CONTAINER_RUN_ARGS='--configmap=cm-foo.yml;--quiet' \
  odo dev --platform=podman

will result in running the following commands:

podman \
  --root=/tmp/podman/root --storage-driver=overlay \
  build \
  --platform=linux/amd64 --build-arg=MY_ARG=my_value \
  ...

...
podman \
  --root=/tmp/podman/root --storage-driver=overlay \
  play kube \
  --configmap=cm-foo.yml --quiet
  ...

...
# Any other podman commands executed by odo under the hood
# will use the global args, e.g.:
podman \
  --root=/tmp/podman/root --storage-driver=overlay \
  pod list --format {{.Name}} --noheading

podman \
  --root=/tmp/podman/root --storage-driver=overlay \
  pod stop $podName