Add project version to Docker tag

[cimnine]

Related Issue: n/a

New Behavior

In the past, it was difficult to align the version of NetBox (e.g. currently v3.0.2) and the version of NetBox Docker (e.g. currently v1.4.0).

Contrast to Current Behavior

This PR changes the build script and introduces an additional Docker tag for all the built tags. The additional tag contains -${PROJECT_VERSION}. Some examples:

• latest-ldap will also be tagged latest-ldap-1.4.0
• v3.0-ldap will also be tagged v3.0-ldap-1.4.0
• v3.0.2-ldap will also be tagged v3.0.2-ldap-1.4.0
• snapshot-ldap will also be tagged snapshot-ldap-1.4.0
• latest will also be tagged latest-1.4.0
• v3.0 will also be tagged v3.0-1.4.0
• v3.0.2 will also be tagged v3.0.2-1.4.0
• snapshot will also be tagged snapshot-1.4.0

Discussion: Benefits and Drawbacks

Once a new version of NetBox Docker is released, only Docker images for the at-that-time current NetBox version (and all later versions) will be produced. For example, if we release this PR as v1.4.1, then v3.0.2-1.4.1 would be tagged, but for example not v3.0.1-1.4.1.

Also, older versions of NetBox Docker will not get new NetBox releases. So, if we release this PR as v1.4.1, and we would have already an image tagged as v3.0.2-1.4.0, then – when NetBox releases v3.0.3, a tag such as v3.0.3-1.4.0 would not be produced. Only v3.0.3-1.4.1 would be built.

That is a good-enough tradeoff for now IMO.

Changes to the Wiki

n/a

Proposed Release Note Entry

Tags containing the corresponding NetBox Docker project version will be available from now on for our Docker images. For example, v3.0.2-ldap-1.4.1 would be such a tag. The v3.0.2 corresponds to the version of the NetBox project, while 1.4.1 corresponds to the version of the NetBox Docker project.

Double Check

• I have read the comments and followed the PR template.
• I have explained my PR according to the information in the comments.
• My PR targets the develop branch.

[tobiasge]

I think we should update the "Prepare a release" section in the wiki to also update the docker-compose.yml with the tag matching the release: image: netboxcommunity/netbox:${VERSION-v3.0-1.4.1}