packer-provisioner-deno

Run Deno scripts to provision stuff with Packer.

This plugin installs deno on the target machine, runs deno bundle locally, uploads the bundled scripts onto the target machine, and executes them.

Installation

This provisioner is a Packer plugin. See the docs for an overview.

Build or download this plugin and place in

$HOME/.packer.d/plugins

You may need to create the plugins directory.

Provisioner Configuration

You must specify "type": "deno" in a provisioners stanza to use this plugin.

The following provisioner config keys are supported. See also the examples directory.

• local_deno_bin (string) - A fully qualified path to a local deno executable. This binary will be used for local bundling and uploaded to the target remote_folder. Useful if you are building deno from source. Other version specifiers ignored.
• target_deno_version (string) - a version passed to the deno installer script. Must match a git tag from deno's releases.
• remote_folder (string) - The target directory where scripts will be uploaded.
• skip_install (boolean) - If true, do not install Deno on the target machine, but assume it is already present.
• scripts (array of string) - A list of paths to TypeScript files that will be passed to deno run -A, one by one, in order. These are your provisioning scripts. Currently, these must be standalone scripts with no path-based dependencies.

Development and Tests

You will need Go 1.13 or later. $GOPATH/bin should be on your PATH.

If you want to hack, make a symlink from $GOPATH/bin/packer-provisioner-deno to the packer plugins directory. Something like this should work, after an initial go install:

ln -s $GOPATH/bin/packer-provisioner-deno $HOME/.packer.d/plugins/packer-provisioner-deno

After that, run the test script

./test.sh

A test build will run in a Docker container.

TODO

We want to accomplish the following

• Install deno onto target system
• Upload individual deno scripts
• Execute individual deno scripts as root
• Add a DigitalOcean cloud builder test
• Allow uploading local deno builds easily (for testing local dev builds)
• Manually bundle scripts locally and upload those.
• Execute scripts as non-root user
• Specify sandboxing flags in the packer config (--allow-net and friends; we run with -A right now)
• Global system install of deno outside any user's HOME
• Add a Vagrant builder test
• Specify alternative install command (for test deno builds fetchable from network)