Pulp

Problem: can't specify CONTENT_HOST setting

Solution: add CONTENT_HOST to the config map

re: #5138 https://pulp.plan.io/issues/5138

Use containers for Travis CI

Fixes: #5004 migrate travis plugin-template to installing pulp in containers https://pulp.plan.io/issues/5004

re: #5069 https://pulp.plan.io/issues/5069 Create pulpcore and pulp_file container images automatically via CI

Implementation includes:

Disabling codecov for the time being.

Only test on Python 3.7 for now, because Fedora 30 has only secondary support for Python 3.6, and it would require multiple changes to test against.

Fix using required PRs for pulp-smash.

Use pulp-smash master branch by default rather than stable release.

Use docker as provided by Travis (rather than k3s containerd).

Generate pulpcore/containers/var/vars.yaml, and build the container image with the plugin & pulp-certguard.

Clone pulp-operator for its scripts to deploy k3s & the operator- managed containers, and run those deployment scripts.

Generate a pulp-operator custom-reource with the settings needed for testing. (It must be generated because it points to the image name like "pulp_rpm" rather than "pulp".)

Use sudo kubectl exec as a method for running commands in the pulp-api container, $CMD_PREFIX .

Use $CMD_PREFIX to run the unit tests.

Install packages needed only for testing in the pulp-api container as it runs.

script.sh: Wait for the content app to become online.

Move as much of the show_logs_and_return_non-zero logic to travis.yml after_failure

Make func_test_script.sh able to use show_logs_and_return_non_zero

Add some pulp_rpm specific debug to show_logs_and_return_non_zero

Add more after_failure lines, misc cleanup &, formatting fixes.

Delete the old CI ansible-pulp playbooks.

Accomodate pulp_rpm needing pulp-smash-config.json, but the pulpcore PR is not ready yet.

Problem: CONTENT_HOST not set when deploying pulp-api Solution: add content_host to the CR used by pulp-operator re: #5138 https://pulp.plan.io/issues/5138

Set content_origin to the 1st node's 1st address.

If not set by the user.

Limited scope (single-node clusters), but sufficient for minikube/k3s/our Travis CI. fixes: #5138 In pulp-operator, the content_origin should be set to the actual accessible service URL https://pulp.plan.io/issues/5138

re: #5629 [Epic] Introduce CONTENT_ORIGIN as a required setting https://pulp.plan.io/issues/5629