lexmag / dicon Goto Github PK

Make dicon.deploy task to require second argument (version) and provide new structure:

<target_dir>/<version>

Introduce dicon.switch (creates symlink to <target_dir>/current) and probably dicon.versions.

When I get prompted with this, if I press y + return, nothing happens, and Dicon just hangs there. We should find a way to avoid this.

** (MatchError) no match of right hand side value: {:error, :timeout}

This can happen because it takes time to stop the running application (dicon.control stop) or whatever, I think we need a longer timeout for a start.

If the chunk size is >= 262120, :ssh_sftp.write/4 fails with {:error, {:exit_status, 11}} (11 means "File already exists" in SFTP, so definitely not helpful 😄).

We should likely have fixed-size chunks and calculate the percentages for the progress bar in a slightly smarter way.

Example use case: we have an application to deploy that connects to Cassandra. We want to deploy it on two machines, and we want each running instance of the application to connect to a different Cassandra node. We want to of course build the release once, deploy the archive once, then change the config.

This can be solved by taking advantage of the -Application Par Val command-line args (http://erlang.org/doc/man/erl.html) we can pass to the app executable in the release when performing commands through mix dicon.control.

This is the worst thing ever happened to software in the history of this universe:

😛