brainlid
I’ve been playing with the new Elixir 1.9.0-dev branch to try out the new “releases”. Everything is working but the piece left unsolved is running DB migrations and seeds.
Previously with Distillery I did those as release tasks. I haven’t found any examples or recommended approaches to this yet.
Looking for guidance or core-team information on what the expected or recommended approach should be.
Where Next?
Trending in Questions
Other Trending Topics
Latest on Elixir Forum
Sponsor Spotlight
Bringing learning, work and compliance together since 1987.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #library
- #deployment
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #elixirconf
- #channels
- #exunit
- #discussion
- #code-sync
- #podcasts
- #javascript
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #ai
- #elixirconf-us
- #blog-post
- #elixir-ls
- #phoenix_html
- #iex
- #graphql
- #genstage
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #hex
- #security
- #metaprogramming
Our Sponsors
Build Elixir applications with speed and confidence.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Elixir, Erlang & BEAM conferences from Code Sync - join us in 2026!
Master modern tools, write cleaner code, and tackle real-world challenges.
Producing high quality Elixir screencasts since 2017.
**Building the future of software with AI, trust, and human connection.**
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"
Showing Posts 1 to 3- Show Best Posts
- Show All (oldest first)
- Show All (newest first)
jola
I asked that question on the mailing list and the short answer is, basically the same way you do with Distillery. Release tasks in Distillery are just custom commands, and what the guide for migrations does is a custom command that
evals a function. You can do that in 1.9 releases as well. So it’s the exact same thing, except instead ofapp/bin/hello migrateyou run
app/bin/hello eval "Hello.ReleaseTasks.migrate"brainlid
Thanks @jola! That initial
evalpiece was the missing bit for me. Awesome!josevalim
We are also adding new functions to Ecto.SQL to abstract the bureaucracy of starting new applications and repositories to run migrations in releases: Add Ecto.Migrator.with_repo/2 to start/stop apps for migrations by josevalim · Pull Request #113 · elixir-ecto/ecto_sql · GitHub
This code was already inside of Ecto.SQL, we are just making it public.