Created
February 20, 2015 14:15
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Deploys code from a GitHub repository to an ec2 instance (or any linux-based VPS).
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| #!/usr/bin/env bash | |
| source ~/.rvm/scripts/rvm | |
| rvm use | |
| #`deploy.sh` v0.0.1 by Adam McArthur. | |
| # Deploys code from a GitHub repository to an ec2 instance. | |
| # It is reccommended that the current user can use "sudo" without a password [you might need to use sudo from inside this script], | |
| # See: http://askubuntu.com/questions/235084/how-do-i-remove-ubuntus-password-requirement#answer-235088 | |
| ##### SETTINGS [Change Me] ##### | |
| # Used only for status notification messages | |
| app_name="My App" | |
| # Location on the server where your apps are stored | |
| apps_dir="/var/www" | |
| # GitHub repository info | |
| github_username="" | |
| git_repo="" | |
| # The path your application will be cloned to | |
| app_path="$apps_dir/$git_repo" | |
| # Where are your log files? | |
| log_files="$app_path/server/log" | |
| # Where on the server should your log files be archived to after each deployment? | |
| archived_log_files="$apps_dir/archived_log_files" | |
| # App install commands must succeed before the current running application is shut down... | |
| app_install_commands="" | |
| # How is your application started? (Run from inside the actual application directory) | |
| app_startup_commands="" | |
| # Commands to be run when application startup is successful | |
| post_startup_commands="" | |
| post_startup_commands_2="" | |
| # How is the application shut down? (Run from inside the actual applciation directory) [if statement used in case first time deploying] | |
| app_terminate_commands="" | |
| ##### SCRIPT [Leave Me] ###### | |
| Bold='\033[1m' | |
| Red='\033[1;31m' | |
| Yel='\033[1;33m' | |
| Gre='\033[1;32m' | |
| Clear='\033[0m' | |
| if [ -z $GIT_BRANCH ]; then git_branch="master"; else git_branch=$GIT_BRANCH; fi | |
| app_old=$app_path"_old" | |
| app_pending=$app_path"_pending" | |
| app_failed=$app_path"_failed" | |
| echo | |
| echo | |
| echo | |
| echo -e "${Bold}==== DEPLOYMENT STARTING ====${Clear}" | |
| echo | |
| # Stop script if an error occurs | |
| set -e | |
| # Create apps dir if it for some reason gets removed... | |
| if [ ! -d $apps_dir ]; then | |
| echo -e "Warning: '${Red}$apps_dir${Clear}' doesn't currently exist. Attempting to create it..." | |
| sudo mkdir $apps_dir | |
| sudo chown -R $(whoami):$(whoami) $apps_dir | |
| echo -e "${Gre}Directory created.${Clear} Proceeding with deployment..." | |
| fi | |
| # Make sure apps dir is writable | |
| if [ ! -w $apps_dir ]; then | |
| echo -e "Warning: '$apps_dir' is not currently writable. Attempting to repair permissions..." | |
| sudo chown -R $(whoami):$(whoami) $apps_dir | |
| echo -e "${Gre}Permissions have been successfully repaired for '$apps_dir'.${Clear}" | |
| fi | |
| echo | |
| echo -e "${Bold}01. Clearing files from last deployment in '$apps_dir' directory...${Clear}" | |
| cd $apps_dir | |
| rm -r -f $app_pending | |
| rm -r -f $app_error | |
| rm -r -f $app_failed | |
| echo | |
| echo -e "${Bold}02. Downloading latest version from $git_repo:$git_branch...${Clear}" | |
| git clone https://github.com/$github_username/$git_repo.git $app_pending | |
| cd $app_pending | |
| git checkout $git_branch -f | |
| echo | |
| echo -e "${Bold}03. Repairing permissions for '$app_pending'...${Clear}" | |
| cd $apps_dir | |
| chown -R $(whoami):$(whoami) $app_pending | |
| echo | |
| echo -e "${Bold}04. Installing dependancies for new deployment...${Clear}" | |
| cd $app_pending | |
| $app_install_commands | |
| echo | |
| echo -e "${Bold}05. Terminating current application...${Clear}" | |
| if [ -d $app_path ]; then | |
| cd $app_path | |
| $app_terminate_commands | |
| else | |
| echo -e "Notice: It looks like this is your first time deploying $app_name to '$apps_dir'. Skipping this step." | |
| fi | |
| echo | |
| echo -e "${Bold}06. Archiving old log files...${Clear}" | |
| if [ -d $log_files ]; then | |
| mkdir -p $archived_log_files/$git_repo/$(date +'%Y')/$(date +'%m')/$(date +'%d')/$(date +'%H'):$(date +'%M')/$(date +'%N') | |
| scp -r $log_files $_ | |
| else | |
| echo -e "Notice: Couldn't find the specified log files directory at '$log_files'. Skipping this step." | |
| fi | |
| echo | |
| echo -e "${Bold}07. Replacing contents of '$app_path' with '$app_pending'...${Clear}" | |
| if [ -d $app_path ]; then mv $app_path $app_old; fi | |
| mv $app_pending $app_path | |
| echo | |
| echo -e "${Bold}---------------------------------" | |
| echo | |
| #We'll handle the errors from this point. | |
| set +e | |
| echo | |
| echo -e "${Bold}08. Starting new application...${Clear}" | |
| cd $app_path | |
| if $app_startup_commands; then | |
| rm -r -f $app_old | |
| $post_startup_commands | |
| $post_startup_commands_2 | |
| echo -e "${Gre}[APPLICATION NOW RUNNING] $app_name has been deployed successfully :)${Clear}" | |
| echo | |
| exit 0 | |
| else | |
| echo -e " ${Bold}${Red}[FAIL!] Couldn't start the application (${Clear}#1${Red}): ${Yel}Retrying...${Clear}" | |
| echo | |
| if $app_startup_commands; then | |
| rm -r -f $app_old | |
| $post_startup_commands | |
| $post_startup_commands_2 | |
| echo -e "${Gre}[APPLICATION NOW RUNNING] $app_name has been deployed successfully :)${Clear}" | |
| echo | |
| exit 0 | |
| else | |
| echo -e " ${Red}[FAIL] Couldn't start the application (${Clear}#2${Red}): ${Yel}Reverting to previous build...${Clear}" | |
| echo | |
| mv $app_path $app_failed | |
| mv $app_old $app_path | |
| cd $app_path | |
| if $app_startup_commands; then | |
| $post_startup_commands | |
| $post_startup_commands_2 | |
| echo | |
| echo -e "${Yel}...Reverted to previous build successfully. The latest build could not be started, and is likely due to a runtime error on startup.${Clear}" | |
| exit 3 | |
| else | |
| echo -e "${Red}[Fatal Error] Neither version of the application could be started. This is a most likely an issue on the server side, and requires immediate attention. No application is currently running.${Clear}" | |
| echo | |
| echo "..." | |
| echo | |
| echo -e "Current structure in '$apps_dir':" | |
| ls $apps_dir | |
| echo | |
| exit 3 | |
| fi | |
| fi | |
| fi |
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