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Add customizable configuration script to release (#2295)

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Jonatan Kłosko 2023-10-24 16:46:40 +02:00 • committed by GitHub
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commit 6406e1fcf7
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4 changed files with 15 additions and 6 deletions
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5
README.md
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@ -349,6 +349,11 @@ When clustering is enabled, you must additionally set the following env vars:
`LIVEBOOK_DISTRIBUTION` is automatically set to `name` if clustering is `LIVEBOOK_DISTRIBUTION` is automatically set to `name` if clustering is
enabled. enabled.
Some variables, like `LIVEBOOK_NODE`, are oftentimes computed at runtime.
When using the Livebook Docker image, you can create a file at `/app/env.sh`
that exports the necessary environment variables. This file is invoked right
before booting Livebook.
## Development ## Development
Livebook is primarily a Phoenix web application and can be setup as such: Livebook is primarily a Phoenix web application and can be setup as such:

8
lib/livebook/hubs/dockerfile.ex
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@ -130,16 +130,12 @@ defmodule Livebook.Hubs.Dockerfile do
""" <> """ <>
~S""" ~S"""
# Custom startup script to cluster multiple Livebook nodes on Fly.io # Runtime configuration to cluster multiple Livebook nodes on Fly.io
RUN printf '\ RUN printf '\
#!/bin/bash\n\
export ERL_AFLAGS="-proto_dist inet6_tcp"\n\ export ERL_AFLAGS="-proto_dist inet6_tcp"\n\
export LIVEBOOK_NODE="${FLY_APP_NAME}-${FLY_IMAGE_REF##*-}@${FLY_PRIVATE_IP}"\n\ export LIVEBOOK_NODE="${FLY_APP_NAME}-${FLY_IMAGE_REF##*-}@${FLY_PRIVATE_IP}"\n\
export LIVEBOOK_CLUSTER="dns:${FLY_APP_NAME}.internal"\n\ export LIVEBOOK_CLUSTER="dns:${FLY_APP_NAME}.internal"\n\
/app/bin/livebook start\n\ ' > /app/env.sh
' > /app/bin/start.sh && chmod +x /app/bin/start.sh
CMD [ "sh", "-c", "/app/bin/start.sh" ]
""" """
end end

4
rel/server/env.bat.eex
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@ -1,3 +1,7 @@
if exist "!RELEASE_ROOT!\env.bat" (
call "!RELEASE_ROOT!\env.bat"
)
set RELEASE_MODE=interactive set RELEASE_MODE=interactive
if defined LIVEBOOK_NODE set RELEASE_NODE="!LIVEBOOK_NODE!" if defined LIVEBOOK_NODE set RELEASE_NODE="!LIVEBOOK_NODE!"
if not defined RELEASE_NODE set RELEASE_NODE=livebook_server if not defined RELEASE_NODE set RELEASE_NODE=livebook_server

4
rel/server/env.sh.eex
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@ -1,3 +1,7 @@
if [ -f "${RELEASE_ROOT}/env.sh" ]; then
. "${RELEASE_ROOT}/env.sh"
fi
export RELEASE_MODE=interactive export RELEASE_MODE=interactive
export RELEASE_NODE=${LIVEBOOK_NODE:-${RELEASE_NODE:-livebook_server}} export RELEASE_NODE=${LIVEBOOK_NODE:-${RELEASE_NODE:-livebook_server}}
if [ -z "${LIVEBOOK_CLUSTER}" ]; then DISTRIBUTION_DEFAULT="sname"; else DISTRIBUTION_DEFAULT="name"; fi if [ -z "${LIVEBOOK_CLUSTER}" ]; then DISTRIBUTION_DEFAULT="sname"; else DISTRIBUTION_DEFAULT="name"; fi