bootstrap-fly-env-sync

Syncing .env files to Fly.io secrets involves generating a bash script that parses local environment variables and converts them into batched fly secrets set commands. This avoids manual entry and prevents CLI argument limit issues.

You can safely set Fly.io secrets from a .env file by running a generated script in dry-run mode first. This prints the proposed fly secrets set commands so you can review them before passing --execute to apply changes.

Yes, you can use a bash script to automate Fly.io environment variable deployment. The script skips comments and blank lines, validates key formats, trims whitespace, and strips surrounding quotes from values.

Yes, the Fly.io env sync script supports production environment files. It can optionally copy a template to .env.prod, update .gitignore to ignore .env.prod, and add a Justfile recipe when a justfile exists.

Fly secrets set commands can fail when pushing many environment variables due to CLI argument limits. Generating batched commands from a .env file chunks the variables into smaller groups to avoid these limits.

The best way to manage Fly.io app configuration across development workflows is synchronizing local .env files into Fly secrets via an automated script. This keeps app configuration consistent and reduces manual errors.