We need to create release tasks that will go in the root of lib.
That will have a migration and / or seed function in it.
Then in the rel/config.exs we a list of tuples that have the task command, what we want to refer to it as, and the the shell script that we want it to run.
Remember mix isn't installed on the prod machine!
the shell script just calls bin/postit command Elixir.Postit.ReleaseTasks migrate
Then we, to run migration on app launch for new builds, back in rel/config.ex we add set post_start_hooks: "rel/hooks/post_start" to env prod. in this directory we have a single shell script that will use nodetool to ping when the, not app, but BEAM? is up and running, and then run the migration.
#!/usr/bin/env bash set +e while true; do nodetool ping EXIT_CODE=$? if [[ ${EXIT_CODE} -eq 0 ]]; then echo "Application is up!" break fi done set -e echo "Running migrations" bin/postit command Elixir.Release.Tasks migrate echo "Migrations run successfully"
It's great that I had the command correct in the this write up.
bc i didn't in the post_start script or the set commands script
currently it's in both to see which if both run?
Custom commands give you a lot of power to express potentially complex operations as a terse statement. I would encourage you to use them for these types of tasks rather than using the raw rpc and eval tasks!
App Engine to remove old instances
save that for another day, i'm all dev ops out.
Force SSL
we figured out that we'd forgotten the force_ssl : [] part all together. 🤦♂️
We are pretty bad at CSS. In a perpetual cycle kind of way. So we need to be better. This is definitely an area where we need to improve on.
Missing Model Features
Posts will need to be a many-to-one to users or 'authors'
post's are not editable. once published, it's done
auto saving versions for undo?
would that be a Postgres implementation? Where would that line be?
build_assoc(struct, assoc, attributes \ %{}) Builds a struct from the given assoc in model.
If the relationship is a has_one or has_many and the key is set in the given model, the key will automatically be set in the built association / Ecto Documentation
def change do alter table("posts") do add: user_id, :uuid end
We're adding a column to our posts table user_id with data type uuid, as it should be a unique identifier? But I don't really know, bc it's coming from auth0. Still happy I didn't role my own.
Option B is we could reallocate the user table from auth0 i believe to be in our own database and then create a user scheme to get the info we need from it. That might be an option for another day?
Search: elixir pattern match 2 string keys
def create(conn, %{"post" => post_params}) do case Posting.create_post(post_params) do {:ok, post} ->
if I understand it I need to leverage pattern matching to get the user_id out of conn and into a map to pass to create_post which takes a single argument.
protocol String.Chars not implemented for oh noes
We want a profile page for users
can add 3rd party API Tokens
update display name
how does that work with auth0 as a user table
should we move the storage table of users from auth0 to gcloud?
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