allow labelling docker web container

[lennart]

SUMMARY

for local docker installations, this pull request allows to label the awx_web container. this can be used to make container aware software e.g. automatically discover awx and route or generate ssl certs for it (one use case would be traefik which does both).

labels can be set in installer inventory via:

awx_web_container_labels="my.custom.label=foo"

and in a less contrived example (using traefik):

awx_web_container_lables="traefik.enable=true,traefik.http.routers.awx_web.rule=Host(`awx.example.com`),traefik.http.routers.awx_web.tls.certresolver=letsencrypt"

which is picked up by traefik when awx_web starts and routes access to awx.example.com to the awx_web container (without awx_web binding any port on the host interface) and also (optionally) requests an ssl cert via letsencrypt

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

• Installer

AWX VERSION

awx: 15.0.1

ADDITIONAL INFORMATION

[softwarefactory-project-zuul]

Build succeeded.

• awx-api-lint : SUCCESS in 1m 53s
• awx-api : SUCCESS in 7m 24s
• awx-ui : SUCCESS in 3m 45s
• awx-ui-next : SUCCESS in 8m 16s
• awx-swagger : SUCCESS in 8m 25s
• awx-detect-schema-change : SUCCESS in 9m 01s (non-voting)
• awx-ansible-modules : SUCCESS in 2m 29s

[a0n]

awesome!

[softwarefactory-project-zuul]

Build succeeded (gate pipeline).

• awx-api-lint : SUCCESS in 2m 12s
• awx-api : SUCCESS in 8m 02s
• awx-ui : SUCCESS in 3m 34s
• awx-ui-next : SUCCESS in 18m 12s
• awx-swagger : SUCCESS in 18m 34s
• awx-detect-schema-change : SUCCESS in 9m 29s (non-voting)
• awx-ansible-modules : SUCCESS in 2m 21s
• awx-push-new-schema : SUCCESS in 7m 57s (non-voting)