chore: set MaxItems to 1 for app healthcheck

feat: add healthcheck parameters to coder_app

fix: Regenerate agent token on each run (coder#51)

This resolves a race condition where an old agent could be updated and connected to before the new agent was registered.

fix: Add check for duplicate metadata keys (coder#49)

* fix: Add check for duplicate metadata keys

Fixes coder/coder#3721.

* Update internal/provider/provider.go

Co-authored-by: David Wahler <david@coder.com>

Co-authored-by: David Wahler <david@coder.com>

feat: Add icon to coder_metadata resource (coder#48)

Generate docs for coder metadata

fix: Add custom host for access URL and remove access port (coder#44)

* fix: Add custom host for access URL and remove access port

This allows a host override, which is useful for running Docker
containers that need to access the same deployment port, but on
`host.docker.internal` as the hostname.

It also removes access port, which was released a few days ago in hopes of
solving the same problem, but never really did. It doesn't seem likely to
be used yet, so it feels safe to remove.

* Fix access url when host is not provided

Signed-off-by: Spike Curtis <spike@coder.com>

Signed-off-by: Spike Curtis <spike@coder.com>
Co-authored-by: Spike Curtis <spike@coder.com>
Co-authored-by: Spike Curtis <spike@spikecurtis.com>

Revert "fix: Add custom host for access URL and remove access port (c…

…oder#40)" (coder#42)

This reverts commit cea1dfa.

fix: Add custom host for access URL and remove access port (coder#40)

This allows a host override, which is useful for running Docker
containers that need to access the same deployment port, but on
`host.docker.internal` as the hostname.

It also removes access port, which was released a few days ago in hopes of
solving the same problem, but never really did. It doesn't seem likely to
be used yet, so it feels safe to remove.

feat: Expose access_port on coder_workspace to allow for alternative …

…hosts (coder#37)

This allows our Docker template to use a custom host with the correct port.