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Elixir Deployment
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tetiana12345678
January 29, 2017
Programming
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Elixir Deployment
Talk given at Elixir London meetup 2017.
tetiana12345678
January 29, 2017
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Transcript
DEPLOYING ELIXIR BY TETIANA DUSHENKIVSKA
None
HEROKU VS USING RELEASES
DEPLOYING USING RELEASES
PICK RELEASE MANAGER EXRM DISTILLERY REBAR3
None
WHERE SHOULD WE BUILD A RELEASE?
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None
CREATING A RELEASE OF OTP APP WITH DISTILLERY
ADD DISTILLERY DEPS TO MIX.EXS {:distillery, "~> 1.0"}
FETCH DEPS $ mix deps.get
RELEASE IT! $ mix release ==> You are missing a
release config file. Run the release.init task first
DO AS DISTILLERY TOLD YOU $ mix release.init
GENERATED REL/CONFIG.EXS
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REL/CONFIG.EXS #/rel/config file content ... include_ertc: false #needs to have
erlang installed. ... release :app_name do set version: current_version(:app_name) end
PRODUCE A RELEASE MIX_ENV=prod mix compile mix release --env=prod --verbose
option for more info
YOU CAN FIND YOUR RELEASES AT _BUILD/PROD/REL/APP_NAME/RELEASES/0.0.1/
AND TARBALL IS PRODUCED! .TAR.GZ
AND YOU HAVE BUILT YOUR RELEASE!
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...BUT SOMETIMES THINGS GO WRONG
None
None
SOLUTION 1 SHORTEN LONG MODULE NAMES $ find . -type
f -print| awk -F/ ' length($NF) > 99 '
SOLUTION 2 PRODUCE TARBAL MANUALLY MIX_ENV=prod mix compile mix release
--env=prod --no-tar cd /my_app/_build/prod tar -cvzf my_app.tar.gz
GOT IT SORTED!
DEPLOYING
POSSIBILITY 1 MANUALLY COPY .TAR.GZ TO THE PROD SERVER #
copy release to prod server $ scp -i _build/prod/rel/my_app/releases/0.0.1\ /my_app.tar.gz user_name@server_name:/home/my_app/releases/0.0. my_app.tar.gz
UNTAR IT # ssh to the server ssh user_name@server_name #
untar your release on prod server tar -xzf ~/my_app.tar.gz
CHECK IT'S WORKING # start it on prod server my_app/bin/my_app
console # you should see the logs # start it as a daemon on prod server my_app/bin/my_app start my_app/bin/my_app ping # > pong
A BIT OF AUTOMATION
None
GET TO KNOW YOUR SERVER
.TAR.GZ VS .DEB?
.DEB CONTAIN DEBIAN-BINARY CONTROL.TAR.GZ DATA.TAR.GZ
DEBIAN-BINARY 2.0/n
CONTROL.TAR.GZ ARCHIVED CONTROL FILE Package: my.app Version: 1.0.0 Architecture: amd64
Maintainer: Inflowmatix Priority: optional Description: Packaged on debian server
DATA.TAR.GZ THIS IS WHERE OUR APP BINARIES GO (FROM _BUILD
DIR)
LET'S SEE THE EXAMPLE
None
CIRCLECI(2.0) BUILD RELEASE(NO TAR) cd my_app if [ "${CIRCLE_BRANCH}" ==
"master" ]; then MIX_ENV=prod mix compile mix release --env=prod --no-tar --verbose ...
PREPARE DATA.TAR.GZ ... cd /my_app chmod 755 _build/prod/rel/my_app/bin/my_app ... mkdir
-p /my_app/package/ cd /my_app/_build/prod/ tar --xform="s%^%/home/my_app/%"\ -cvzf /my_app/package/data.tar.gz rel/
PREPARE DEBIAN-BINARY ... echo "2.0" >> package/debian-binary
PREPARE CONTROL.TAR.GZ ... mkdir -p package/control cd package/control printf "Package:
..." >> control; tar -zcf /my_app/package/control.tar.gz .
CREATE .DEB PACKAGE ... cd /my_app/ version=$(git describe | sed
's/v//'); mkdir releases ar -rc releases/my_app_$version.deb\ package/debian-binary package/control.tar.gz\ package/data.tar.gz rm -rf package/ fi
STORE .DEB IN ARTIFACTS(CIRCLECI) - type: artifacts-store path: /my_app/releases destination:
releases
DOWNLOAD RELEASE SSH TO THE SERVER $dpkg my_app_0.0.1.deb $/home/my_app/bin/my_app start
SUMMARY LOT'S OF OPTIONS 3 PIECES NEEDED TO PRODUCE .DEB
PACKAGE COULD BE FRUSTRATING, BUT DON'T GIVE UP! CHECK WHERE YOU ARE BUILDING A RELEASE