mirror of
https://github.com/YunoHost/yunohost.git
synced 2024-09-03 20:06:10 +02:00
Félix Piédallu
eb97b3632a
Every app or almost will do that, because it doesn't make sense to remove the systemd config but not the associated yunohost configuration. This will clean up a bit the remove scripts.
186 lines
7.5 KiB
Bash
186 lines
7.5 KiB
Bash
#!/bin/bash
|
|
|
|
# Create a dedicated systemd config
|
|
#
|
|
# usage: ynh_config_add_systemd [--service=service] [--template=template]
|
|
# | arg: --service= - Service name (optionnal, `$app` by default)
|
|
# | arg: --template= - Name of template file (optionnal, this is 'systemd' by default, meaning `../conf/systemd.service` will be used as template)
|
|
#
|
|
# This will use the template `../conf/<templatename>.service`.
|
|
#
|
|
# See the documentation of `ynh_config_add` for a description of the template
|
|
# format and how placeholders are replaced with actual variables.
|
|
ynh_config_add_systemd() {
|
|
# ============ Argument parsing =============
|
|
local -A args_array=([s]=service= [t]=template=)
|
|
local service
|
|
local template
|
|
ynh_handle_getopts_args "$@"
|
|
service="${service:-$app}"
|
|
template="${template:-systemd.service}"
|
|
# ===========================================
|
|
|
|
ynh_config_add --template="$template" --destination="/etc/systemd/system/$service.service"
|
|
|
|
systemctl enable $service --quiet
|
|
systemctl daemon-reload
|
|
}
|
|
|
|
# Remove the dedicated systemd config, and if configured into YunoHost, removes the service.
|
|
#
|
|
# usage: ynh_config_remove_systemd service
|
|
# | arg: service - Service name (optionnal, $app by default)
|
|
ynh_config_remove_systemd() {
|
|
local service="${1:-$app}"
|
|
|
|
if ynh_exec_warn_less yunohost service status "$app" >/dev/null; then
|
|
yunohost service remove "$app"
|
|
fi
|
|
|
|
if [ -e "/etc/systemd/system/$service.service" ]; then
|
|
ynh_systemctl --service="$service" --action=stop
|
|
systemctl disable "$service" --quiet
|
|
ynh_safe_rm "/etc/systemd/system/$service.service"
|
|
systemctl daemon-reload
|
|
fi
|
|
}
|
|
|
|
# Start (or other actions) a service, print a log in case of failure and optionnaly wait until the service is completely started
|
|
#
|
|
# usage: ynh_systemctl [--service=service] [--action=action] [ [--wait_until="line to match"] [--log_path=log_path] [--timeout=300] [--length=20] ]
|
|
# | arg: --service= - Name of the service to start. Default : `$app`
|
|
# | arg: --action= - Action to perform with systemctl. Default: start
|
|
# | arg: --wait_until= - The pattern to find in the log to attest the service is effectively fully started.
|
|
# | arg: --log_path= - Log file - Path to the log file. Default : `/var/log/$app/$app.log`
|
|
# | arg: --timeout= - Timeout - The maximum time to wait before ending the watching. Default : 60 seconds.
|
|
# | arg: --length= - Length of the error log displayed for debugging : Default : 20
|
|
ynh_systemctl() {
|
|
# ============ Argument parsing =============
|
|
local -A args_array=([n]=service= [a]=action= [w]=wait_until= [p]=log_path= [t]=timeout= [e]=length=)
|
|
local service
|
|
local action
|
|
local wait_until
|
|
local length
|
|
local log_path
|
|
local timeout
|
|
ynh_handle_getopts_args "$@"
|
|
service="${service:-$app}"
|
|
action=${action:-start}
|
|
wait_until=${wait_until:-}
|
|
length=${length:-20}
|
|
log_path="${log_path:-/var/log/$service/$service.log}"
|
|
timeout=${timeout:-60}
|
|
# ===========================================
|
|
|
|
# On CI, use length=100 because it's sometime hell to debug otherwise for super-long output
|
|
if ynh_in_ci_tests && [ $length -le 20 ]
|
|
then
|
|
length=100
|
|
fi
|
|
|
|
# Manage case of service already stopped
|
|
if [ "$action" == "stop" ] && ! systemctl is-active --quiet $service; then
|
|
return 0
|
|
fi
|
|
|
|
# Start to read the log
|
|
if [[ -n "$wait_until" ]]; then
|
|
local templog="$(mktemp)"
|
|
# Following the starting of the app in its log
|
|
if [ "$log_path" == "systemd" ]; then
|
|
# Read the systemd journal
|
|
journalctl --unit=$service --follow --since=-0 --quiet >"$templog" &
|
|
# Get the PID of the journalctl command
|
|
local pid_tail=$!
|
|
else
|
|
# Read the specified log file
|
|
tail --follow=name --retry --lines=0 "$log_path" >"$templog" 2>&1 &
|
|
# Get the PID of the tail command
|
|
local pid_tail=$!
|
|
fi
|
|
fi
|
|
|
|
# Use reload-or-restart instead of reload. So it wouldn't fail if the service isn't running.
|
|
if [ "$action" == "reload" ]; then
|
|
action="reload-or-restart"
|
|
fi
|
|
|
|
local time_start="$(date --utc --rfc-3339=seconds | cut -d+ -f1) UTC"
|
|
|
|
# If the service fails to perform the action
|
|
if ! systemctl $action $service; then
|
|
# Show syslog for this service
|
|
journalctl --quiet --no-hostname --no-pager --lines=$length --unit=$service >&2
|
|
# If a log is specified for this service, show also the content of this log
|
|
if [ -e "$log_path" ]; then
|
|
tail --lines=$length "$log_path" >&2
|
|
fi
|
|
_ynh_clean_check_starting
|
|
return 1
|
|
fi
|
|
|
|
# Start the timeout and try to find wait_until
|
|
if [[ -n "${wait_until:-}" ]]; then
|
|
set +o xtrace # set +x
|
|
local i=0
|
|
local starttime=$(date +%s)
|
|
for i in $(seq 1 $timeout); do
|
|
# Read the log until the sentence is found, that means the app finished to start. Or run until the timeout
|
|
if [ "$log_path" == "systemd" ]; then
|
|
# For systemd services, we in fact dont rely on the templog, which for some reason is not reliable, but instead re-read journalctl every iteration, starting at the timestamp where we triggered the action
|
|
if journalctl --unit=$service --since="$time_start" --quiet --no-pager --no-hostname | grep --extended-regexp --quiet "$wait_until"; then
|
|
ynh_print_info "The service $service has correctly executed the action ${action}."
|
|
break
|
|
fi
|
|
else
|
|
if grep --extended-regexp --quiet "$wait_until" "$templog"; then
|
|
ynh_print_info "The service $service has correctly executed the action ${action}."
|
|
break
|
|
fi
|
|
fi
|
|
if [ $i -eq 30 ]; then
|
|
echo "(this may take some time)" >&2
|
|
fi
|
|
# Also check the timeout using actual timestamp, because sometimes for some reason,
|
|
# journalctl may take a huge time to run, and we end up waiting literally an entire hour
|
|
# instead of 5 min ...
|
|
if [[ "$(( $(date +%s) - $starttime))" -gt "$timeout" ]]
|
|
then
|
|
i=$timeout
|
|
break
|
|
fi
|
|
sleep 1
|
|
done
|
|
set -o xtrace # set -x
|
|
if [ $i -ge 3 ]; then
|
|
echo "" >&2
|
|
fi
|
|
if [ $i -eq $timeout ]; then
|
|
ynh_print_warn "The service $service didn't fully executed the action ${action} before the timeout."
|
|
ynh_print_warn "Please find here an extract of the end of the log of the service $service:"
|
|
journalctl --quiet --no-hostname --no-pager --lines=$length --unit=$service >&2
|
|
if [ -e "$log_path" ]; then
|
|
ynh_print_warn "==="
|
|
tail --lines=$length "$log_path" >&2
|
|
fi
|
|
|
|
# If we tried to reload/start/restart the service but systemctl consider it to be still inactive/broken, then handle it as a failure
|
|
if ([ "$action" == "reload" ] || [ "$action" == "start" ] || [ "$action" == "restart" ]) && ! systemctl --quiet is-active $service
|
|
then
|
|
_ynh_clean_check_starting
|
|
return 1
|
|
fi
|
|
fi
|
|
_ynh_clean_check_starting
|
|
fi
|
|
}
|
|
|
|
_ynh_clean_check_starting() {
|
|
if [ -n "${pid_tail:-}" ]; then
|
|
# Stop the execution of tail.
|
|
kill -SIGTERM $pid_tail 2>&1
|
|
fi
|
|
if [ -n "${templog:-}" ]; then
|
|
ynh_safe_rm "$templog" 2>&1
|
|
fi
|
|
}
|