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nomad_ynh/scripts/upgrade
2022-07-23 17:10:52 +02:00

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#!/bin/bash
#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================
source _common.sh
source ynh_install_go
source /usr/share/yunohost/helpers
#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..."
app=$YNH_APP_INSTANCE_NAME
domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
config_path=$(ynh_app_setting_get --app=$app --key=config_path)
datadir=$(ynh_app_setting_get --app=$app --key=datadir)
node_type=$(ynh_app_setting_get --app=$app --key=node_type)
bootstrap_expect=$(ynh_app_setting_get --app=$app --key=bootstrap_expect)
retry_join=$(ynh_app_setting_get --app=$app --key=retry_join)
server_ip=$(ynh_app_setting_get --app=$app --key=server_ip)
driver_lxc=$(ynh_app_setting_get --app=$app --key=driver_lxc)
http_port=$(ynh_app_setting_get --app=$app --key=http_port)
rpc_port=$(ynh_app_setting_get --app=$app --key=rpc_port)
serf_port=$(ynh_app_setting_get --app=$app --key=serf_port)
#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..."
upgrade_type=$(ynh_check_app_version_changed)
#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..."
# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
ynh_clean_check_starting
# Restore it if the upgrade fails
ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors
#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..."
ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."
# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
ynh_legacy_permissions_delete_all
ynh_app_setting_delete --app=$app --key=is_public
fi
#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..."
# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app
#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..."
if [ "$node_type" == "server" ]
then
pkg_dependencies="$pkg_dependencies $server_pkg_dependencies"
fi
if [ "$node_type" == "client" ]
then
if [ $driver_lxc -eq 1 ]
then
client_pkg_dependencies="$client_pkg_dependencies $client_lxc_pkg_dependencies"
ynh_exec_warn_less ynh_install_go --go_version=$go_version
fi
pkg_dependencies="$pkg_dependencies $client_pkg_dependencies"
fi
ynh_install_app_dependencies $pkg_dependencies
ynh_install_extra_app_dependencies --repo="deb https://apt.releases.hashicorp.com $(lsb_release -cs) main" --package="$extra_pkg_dependencies" --key="https://apt.releases.hashicorp.com/gpg"
#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..."
# Create a dedicated NGINX config
ynh_add_nginx_config
#=================================================
# SPECIFIC UPGRADE
#=================================================
# BUILD DRIVERS
#=================================================
if [ "$node_type" == "client" ]
then
if [ $driver_lxc -eq 1 ]
then
ynh_script_progression --message="Building LXC driver..."
tempdir="$(mktemp -d)"
ynh_setup_source --dest_dir="$tempdir" --source_id="driver-lxc"
pushd $tempdir
final_path=$tempdir
ynh_use_go
export GOPATH="$tempdir/go"
export GOCACHE="$tempdir/.cache"
ynh_exec_warn_less $ynh_go build
popd
mv -f $tempdir/nomad-driver-lxc $datadir/plugins/nomad-driver-lxc
ynh_secure_remove --file="$tempdir"
fi
fi
#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..."
mkdir -p $config_path
chmod 750 "$config_path"
chmod -R o-rwx "$config_path"
chown -R $app:$app "$config_path"
ynh_add_config --template="../conf/nomad.hcl" --destination="$config_path/nomad.hcl"
chmod 400 "$config_path/nomad.hcl"
chown $app:$app "$config_path/nomad.hcl"
if [ "$node_type" == "server" ]
then
ynh_add_config --template="../conf/server.hcl" --destination="$config_path/server.hcl"
chmod 400 "$config_path/server.hcl"
chown $app:$app "$config_path/server.hcl"
fi
if [ "$node_type" == "client" ]
then
ynh_add_config --template="../conf/client.hcl" --destination="$config_path/client.hcl"
chmod 400 "$config_path/client.hcl"
chown $app:$app "$config_path/client.hcl"
if [ $driver_lxc -eq 1 ]
then
ynh_add_config --template="../conf/driver-lxc.hcl" --destination="$config_path/driver-lxc.hcl"
chmod 400 "$config_path/driver-lxc.hcl"
chown $app:$app "$config_path/driver-lxc.hcl"
fi
fi
#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..."
systemd_user=$app
if [ "$node_type" == "client" ]
then
systemd_user="root"
fi
# Create a dedicated systemd config
ynh_add_systemd_config
#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..."
# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."
needs_exposed_ports="$rpc_port"
if [ "$node_type" == "server" ]
then
needs_exposed_ports="$serf_port $needs_exposed_ports"
fi
yunohost service add $app --log="/var/log/$app/$app.log" --needs_exposed_ports $needs_exposed_ports
#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..."
ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log" --line_match="Nomad agent started"
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."
ynh_systemd_action --service_name=nginx --action=reload
#=================================================
# END OF SCRIPT
#=================================================
ynh_script_progression --message="Upgrade of $app completed"