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Generate deployment scripts for an application.

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mix_deploy priv templates deploy-sync-config-s3.eex
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priv/templates/deploy-sync-config-s3.eex 

#!/usr/bin/env bash



# Sync config files from S3 bucket to app config dir



set -e



# Config vars

export LANG="<%= env_lang %>"

CONFIG_DIR="<%= configuration_dir %>"

APP_USER="${APP_USER:-<%= app_user %>}"

APP_GROUP="${APP_USER:-<%= app_group %>}"



# Env vars

# CONFIG_S3_BUCKET: bucket name

# CONFIG_S3_PREFIX: optional path in prefix

# DESTDIR, prefix for target files, optional



umask 700



# It may be better to explicitly copy files one by one

aws s3 sync "s3://${CONFIG_S3_BUCKET}/${CONFIG_S3_PREFIX}" "${DESTDIR}${CONFIG_DIR}/"



chown $APP_USER:$APP_GROUP ${DESTDIR}$CONFIG_DIR/*

chmod 600 ${DESTDIR}$CONFIG_DIR/*