mirror of
https://github.com/YunoHost-Apps/grafana_ynh.git
synced 2024-09-03 20:36:29 +02:00
131 lines
4.1 KiB
Bash
131 lines
4.1 KiB
Bash
#!/bin/bash
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#
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# Common variables
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#
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GRAFANA_REPOSITORY="/etc/apt/sources.list.d/grafana_stable.list"
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#
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# Common helpers
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#
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# Fix path if needed
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# usage: fix_patch PATH_TO_FIX
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fix_path() {
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local path=$1
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if [ "${path:0:1}" != "/" ] && [ ${#path} -gt 0 ]; then
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path="/$path"
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fi
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if [ "${path:${#path}-1}" == "/" ] && [ ${#path} -gt 1 ]; then
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path="${path:0:${#path}-1}"
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fi
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echo "$path"
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}
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# Install needed repositories and install dependencies
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# usage: install_dependencies
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install_dependencies() {
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# Install needed dependency for HTTPS apt access
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# (that dependency could be handled upstream in YunoHost)
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ynh_package_install apt-transport-https
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# Test repositories existence, in case of failed installation
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grafana_repository_present=""
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[[ -f $GRAFANA_REPOSITORY ]] && grafana_repository_present="true"
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# Install needed apt repository for Grafana
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machine=$(uname -m)
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# Add the repos depending on processor architecture
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if [[ "$machine" =~ "armv6" ]] ; then
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# For ARM, use fg2it repository
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# https://github.com/fg2it/grafana-on-raspberry
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curl https://bintray.com/user/downloadSubjectPublicKey?username=bintray | sudo apt-key add -
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echo "deb http://dl.bintray.com/fg2it/deb-rpi-1b stretch main" | sudo tee $GRAFANA_REPOSITORY
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else
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# x86 processor --> we use the official repository
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curl https://packages.grafana.com/gpg.key | sudo apt-key add -
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echo "deb https://packages.grafana.com/oss/deb stable main" | sudo tee $GRAFANA_REPOSITORY
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fi
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# Install packages
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# We install them as dependencies as they may already be installed and used for other purposes
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ynh_install_app_dependencies influxdb, grafana \
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|| {
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# Remove apt repositories if they were added
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[[ -n "$grafana_repository_present" ]] && sudo rm $GRAFANA_REPOSITORY
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ynh_die "Unable to install Debian packages"
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}
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}
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# ======== Future YunoHost helpers ========
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# Delete a file checksum from the app settings
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#
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# $app should be defined when calling this helper
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#
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# usage: ynh_remove_file_checksum file
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# | arg: file - The file for which the checksum will be deleted
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ynh_delete_file_checksum () {
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local checksum_setting_name=checksum_${1//[\/ ]/_} # Replace all '/' and ' ' by '_'
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ynh_app_setting_delete $app $checksum_setting_name
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}
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# Start or restart a service and follow its booting
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#
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# usage: ynh_check_starting "Line to match" [Log file] [Timeout] [Service name]
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#
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# | arg: Line to match - The line to find in the log to attest the service have finished to boot.
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# | arg: Log file - The log file to watch; specify "systemd" to read systemd journal for specified service
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# /var/log/$app/$app.log will be used if no other log is defined.
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# | arg: Timeout - The maximum time to wait before ending the watching. Defaut 300 seconds.
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# | arg: Service name
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ynh_check_starting () {
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local line_to_match="$1"
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local service_name="${4:-$app}"
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local app_log="${2:-/var/log/$service_name/$service_name.log}"
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local timeout=${3:-300}
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echo "Starting of $service_name" >&2
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systemctl stop $service_name
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local templog="$(mktemp)"
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# Following the starting of the app in its log
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if [ "$app_log" == "systemd" ] ; then
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# Read the systemd journal
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journalctl -u $service_name -f --since=-45 > "$templog" &
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else
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# Read the specified log file
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tail -F -n0 "$app_log" > "$templog" &
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fi
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# Get the PID of the last command
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local pid_tail=$!
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systemctl start $service_name
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local i=0
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for i in `seq 1 $timeout`
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do
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# Read the log until the sentence is found, which means the app finished starting. Or run until the timeout.
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if grep --quiet "$line_to_match" "$templog"
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then
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echo "The service $service_name has correctly started." >&2
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break
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fi
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echo -n "." >&2
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sleep 1
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done
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if [ $i -eq $timeout ]
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then
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echo "The service $service_name didn't fully start before the timeout." >&2
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fi
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echo ""
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ynh_clean_check_starting
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}
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# Clean temporary process and file used by ynh_check_starting
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# (usually used in ynh_clean_setup scripts)
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#
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# usage: ynh_clean_check_starting
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ynh_clean_check_starting () {
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# Stop the execution of tail.
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kill -s 15 $pid_tail 2>&1
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ynh_secure_remove "$templog" 2>&1
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}
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