Docker hub sometimes refuses to serve requests due to rate limits on
anonymous pulls. We already support an option to login to Docker hub
before pulling or building environment containers. However, this has no
effect for images pulled by k8s itself, via a helm chart reference, eg
for the nginx container.
This patch adds a similar option: "stx start --use-dockerhub-cred":
* creates a k8s secret with Docker hub credentials extracted from the
calling user's $HOME/.docker/config.json
* inserts this secret into the helm chart when starting
This option is now used when "stx-init-env" is called with the
"--dockerhub-login" option.
TESTS
=======================
* Use "stx control start --use-dockerhub-cred" and inspect the installed
helm release to make sure the secret has been created and passed on to
the chart
* Using a slightly modified chart that refers to a private image, not
accessible to anonymous users:
- make sure k8s image pull fails without the new option
- make sure k8s image pull succeeds with the new option
* Delete the profile and re-create the environment with and without the
login option
* Make sure the secret gets deleted by "stx control stop"
* Use "stx-init-env" with and without "--dockerhub-login" and make sure
the helm chart is installed correctly
Change-Id: I4c6962ad82e659005b4b7ea840c1ca709c05c60e
Signed-off-by: Davlet Panech <davlet.panech@windriver.com>
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