Commands to hot deploy with distillery

distillery-demo.sh

git clone https://github.com/wmnnd/distillery-demo.git
cd distillery-demo

# Add distillery as dependency in mix.exs
mix deps.get

# To create the initial release
MIX_ENV=prod mix release.init
MIX_ENV=prod mix release

# Create a deployment directory
mkdir ~/deploy

# Copy the 0.1.0 (default) release into the deployment directory
tar -xvzf _build/prod/rel/clock/releases/0.1.0/clock.tar.gz --directory ~/deploy

# Start running the clock server in a separate tab / window
~/deploy/bin/clock foreground

# Create an upgrade release 0.2.0.
# Change version to 0.2.0 in mix.exs
MIX_ENV=prod mix release --upgrade

# To hot deploy the server while the earlier clock is still running - create a new dir for 
# the new release version & copy the release archive
mkdir ~/deploy/releases/0.2.0
cp _build/prod/rel/clock/releases/0.2.0/clock.tar.gz ~/deploy/releases/0.2.0/clock.tar.gz
~/deploy/bin/clock upgrade 0.2.0

# Follow same steps for higher version 0.4.0, 0.5.0, ...
# Create an upgrade release 0.3.0.
# Change version to 0.3.0 in mix.exs
MIX_ENV=prod mix release --upgrade

# To hot deploy the server while the earlier clock is still running - create a new dir for 
# the new release version & copy the release archive
mkdir ~/deploy/releases/0.3.0
cp _build/prod/rel/clock/releases/0.3.0/clock.tar.gz ~/deploy/releases/0.3.0/clock.tar.gz
~/deploy/bin/clock upgrade 0.3.0

# To downgrade running server from 0.2.0 to 0.1.0 (You cannot skip an in between version while downgrade or upgrade)
~/deploy/bin/clock downgrade 0.2.0