fix: use operator image for init containers

[leelavg]

• move function to get running pod image into common controller utils
• use operator image from running pod for init containers in topolvm
  controller and topolvm node

Signed-off-by: Leela Venkaiah G lgangava@redhat.com

[nbalacha]

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: leelavg, nbalacha

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[nbalacha]

/cherry-pick release-4.10

[openshift-cherrypick-robot]

@nbalacha: new pull request created: #95

In response to this:

/cherry-pick release-4.10

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[nbalacha]

/cherry-pick -x release-4.10

[openshift-cherrypick-robot]

@nbalacha: cannot checkout -x release-4.10: error checking out -x release-4.10: exit status 129. output: error: unknown switch `x'
usage: git checkout []
or: git checkout [] [] -- ...

-b <branch>           create and checkout a new branch
-B <branch>           create/reset and checkout a branch
-l                    create reflog for new branch
--guess               second guess 'git checkout <no-such-branch>' (default)
--overlay             use overlay mode (default)
-q, --quiet           suppress progress reporting
--recurse-submodules[=<checkout>]
                      control recursive updating of submodules
--progress            force progress reporting
-m, --merge           perform a 3-way merge with the new branch
--conflict <style>    conflict style (merge or diff3)
-d, --detach          detach HEAD at named commit
-t, --track           set upstream info for new branch
-f, --force           force checkout (throw away local modifications)
--orphan <new-branch>
                      new unparented branch
--overwrite-ignore    update ignored files (default)
--ignore-other-worktrees
                      do not check if another worktree is holding the given ref
-2, --ours            checkout our version for unmerged files
-3, --theirs          checkout their version for unmerged files
-p, --patch           select hunks interactively
--ignore-skip-worktree-bits
                      do not limit pathspecs to sparse entries only
--pathspec-from-file <file>
                      read pathspec from file
--pathspec-file-nul   with --pathspec-from-file, pathspec elements are separated with NUL character

In response to this:

/cherry-pick -x release-4.10

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.