cloud-init configuration for Charm development

multipass-charm.yaml

# cloud-config
## launch multipass instance with `--cloud-init [this file]`
## then mount your charm workspace with `multipass mount "." "[instance name]:/project"`

write_files:
  - path: /etc/profile.d/charm-dev.sh
    permissions: "0644"
    content: |
      export CHARM_BUILD_DIR=/builds
      export CHARM_LAYERS_DIR=/layers
      export CHARM_INTERFACES_DIR=/interfaces

runcmd:
  - ["snap", "install", "charm", "--classic"]
  - ["mkdir", "/builds", "/layers", "/interfaces"]
  - ["chown", "multipass", "/builds", "/layers", "/interfaces"]
  - ["chgrp", "multipass", "/builds", "/layers", "/interfaces"]