Upgrade Python image to 3.9-alpine ...

Upgrade the default base image to Python 3.9 and start testing on Python 3.10-rc

Fix warning in Github Actions ...

Our build script is using "set-env" which has been deprecated by Github.
See this bolg entry:
https://github.blog/changelog/2020-10-01-github-actions-deprecating-set-env-and-add-path-commands/

Move default source image to Python 3.8

Fix shellcheck error

Update build.sh ...

Include suggestion from cimnine

Co-authored-by: Christian Mäder <[email protected]>

Fixes build when DOCKER_FROM is set but empty ...

The DOCKER_FROM is set to an empty value in the push tests.
This expands the check to catch this test case

Fixed "latest" tag ...

The variable for the latest tag didn't contain all the needed values.

Let "latest" tag follow the highest version ...

Latest tag is now added to the new version when it is release by Netbox.

Fix shellcheck items found by shellcheck 0.7.1

Add checks to verifiy if a new build is needed ...

This checks if the source materials (python image, Netbox commit,
netbox-docker commit) have changed since the last build. This check is done
by comparing the digest and commit ids from the previous image with the
given tag to the current values taken from the Git and Docker repositories.

The checks are only performed for builds by the automated builds on Github.

Add labels for all variants ...

When we don't set the --label argument on the commandline for all
build variants we lose them in the image.
This also prints out the labes on image push.

Fix failing GH Action

Building the Docker image with Github Actions

Merge pull request #202 from netbox-community/prepare_184 ...

Prepares scripts and documentation for #184

Remove use of GNU date extensions when labeling images ...

Fixes #197

Prepares scripts and documentation for #184

Merge branch 'fix-skip-git' of https://github.com/mattolenik/netbox-docker into mattolenik-fix-skip-git

Respect SKIP_GIT environment variable when building ...

Fixes issue #190

Adds more labels to the Dockerfile ...

It also updates the README and the bug_report template to reflect
the changes. Additionally, in the README some relevant shields from
shields.io are added.

The labels follow [label-schema.org][lsorg] and the [OpenContainer
image spec, section annotations][ocis], specifications.

[lsorg]: http://label-schema.org/rc1/
[ocis]: https://github.com/opencontainers/image-spec/blob/master/annotations.md

Corrections for shellcheck warnings

Update purpose text in build.sh

Fix build ...

The Docker Hub build system runs on Ubuntu Xenial containers.
Xenial's git is 2.7.4, which does not know the `-P` flag yet.

Checkout the repository with git ...

This changes the build process even further. Instead
f using `wget` to fetch the current code, `git` is used.
This allows for faster switching between branches,
because only the differences between them have to be
fetched from the server.

But the main advantage is that the build cache can
finally be used as designed by Docker. Repetitive
builds are very fast now. This is also true between
branches and tags, as long as the `requirements.txt`
file doesn't change.

externalize netbox download with wget

Fix caching in build.sh

Only build the master branch to speed up the test

Refactor to multistage builds ...

This commit introduces a huge change in the build process.

What changed:

- Dockerfile.ldap was integrated into Dockerfile as a seperate
  [build stage][multistage-build].
- All the build scripts were refactored according to this.
- The `docker-compose.yml` file was adjusted likewise.
- The main build script, `/build.sh`, now always builds all
  targets (formerly called variants).
- The minimal requirements for Docker and docker-compose
  have increased.
- The build on hub.docker.com must be adjusted.

This change should also fix #156 permanently.

[multistage-build]: https://docs.docker.com/develop/develop-images/multistage-build/

%s/digitalocean/netbox-community/gi ...

Thank you Digitalocean for sponsoring Netbox!
And thank you for letting it grow up and move out ;)

reorganized tagging

Add short version tag ...

Adds a short version tag in the form of v$MAJOR.$MINOR. This tags
creates the possibillity to follow patch releases automatically with the
scheduled import option in Openshift and Kubernetes.