Merge pull request #14 from companieshouse/feature/daemon-management-…

…scripts

Add daemon management scripts

scripts/mncq_start.j2

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# Start mncq daemon.
+
+# -- Internal variables -------------------------------------------------------
+
+script_name=$(basename "$0")
+
+default_interval="60"
+default_log_file="{{ tuxedo_logs_path }}/${USER}/cabsQTX.log"
+default_log_level="3"
+
+# -- General ------------------------------------------------------------------
+
+check_user () {
+    if [[ "${USER}" == "root" ]]; then
+        echo "${script_name}: This script should be executed as a Tuxedo service user not root"
+        exit 1
+    fi
+}
+
+check_daemon () {
+    if [[ -n "$(pgrep -u ${USER} mncq)" ]]; then
+        echo "${script_name}: mncq daemon is already running" >&2
+        exit 1
+    fi
+}
+
+start_daemon () {
+    local interval="${1:-${default_interval}}"
+    local log_level="${2:-${default_log_level}}"
+    local log_file="${3:-${default_log_file}}"
+
+    mncq "${interval}" "${log_level}" "${log_file}"
+}
+
+# -- Entrypoint ---------------------------------------------------------------
+
+main () {
+    check_user
+    check_daemon
+    start_daemon "${@}"
+}
+
+main "${@}"

scripts/mncq_stop.j2

@@ -0,0 +1,56 @@
+#!/bin/bash
+
+# Stop mncq daemon.
+
+# -- Internal variables -------------------------------------------------------
+
+script_name=$(basename "$0")
+
+max_pid_wait_seconds="10"
+
+# -- General ------------------------------------------------------------------
+
+check_user () {
+    if [[ "${USER}" == "root" ]]; then
+        echo "${script_name}: This script should be executed as a Tuxedo service user not root"
+        exit 1
+    fi
+}
+
+check_daemon () {
+    if [[ -z "$(pgrep -u ${USER} mncq)" ]]; then
+        echo "${script_name}: mncq daemon is not running" >&2
+        exit 1
+    fi
+}
+
+stop_daemon () {
+    local daemon_pid="$(pgrep -u ${USER} mncq)"
+
+    echo "${script_name}: stopping mncq daemon"
+    kill -s SIGTERM "${daemon_pid}"
+
+    local pid_wait_attempts=0
+
+    while $(kill -0 "${daemon_pid}" 2>/dev/null); do
+        if [[ "${pid_wait_attempts}" -gt "${max_pid_wait_seconds}" ]]; then
+            echo "${script_name}: could not stop mncq daemon"
+            exit 1
+        fi
+
+        ((pid_wait_attempts++))
+        sleep 1
+    done
+
+    echo "${script_name}: mncq daemon stopped"
+}
+
+# -- Entrypoint ---------------------------------------------------------------
+
+main () {
+    check_user
+    check_daemon
+    stop_daemon
+}
+
+main "${@}"

scripts/packq_start.j2

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# Start packq daemon.
+
+# -- Internal variables -------------------------------------------------------
+
+script_name=$(basename "$0")
+
+default_interval="60"
+default_log_file="{{ tuxedo_logs_path }}/${USER}/packQTX.log"
+default_log_level="3"
+
+# -- General ------------------------------------------------------------------
+
+check_daemon () {
+    if [[ -n "$(pgrep -u ${USER} packq)" ]]; then
+        echo "${script_name}: packq daemon is already running" >&2
+        exit 1
+    fi
+}
+
+start_daemon () {
+    local interval="${1:-${default_interval}}"
+    local log_level="${2:-${default_log_level}}"
+    local log_file="${3:-${default_log_file}}"
+
+    packq "${interval}" "${log_level}" "${log_file}"
+}
+
+# -- Entrypoint ---------------------------------------------------------------
+
+main () {
+    check_daemon
+    start_daemon "${@}"
+}
+
+main "${@}"

scripts/packq_stop.j2

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# Stop packq daemon.
+
+# -- Internal variables -------------------------------------------------------
+
+script_name=$(basename "$0")
+
+max_pid_wait_seconds="10"
+
+# -- General ------------------------------------------------------------------
+
+check_daemon () {
+    if [[ -z "$(pgrep -u ${USER} packq)" ]]; then
+        echo "${script_name}: packq daemon is not running" >&2
+        exit 1
+    fi
+}
+
+stop_daemon () {
+    local daemon_pid="$(pgrep -u ${USER} packq)"
+
+    echo "${script_name}: stopping packq daemon"
+    kill -s SIGTERM "${daemon_pid}"
+
+    local pid_wait_attempts=0
+
+    while $(kill -0 "${daemon_pid}" 2>/dev/null); do
+        if [[ "${pid_wait_attempts}" -gt "${max_pid_wait_seconds}" ]]; then
+            echo "${script_name}: could not stop packq daemon"
+            exit 1
+        fi
+
+        ((pid_wait_attempts++))
+        sleep 1
+    done
+
+    echo "${script_name}: packq daemon stopped"
+}
+
+# -- Entrypoint ---------------------------------------------------------------
+
+main () {
+    check_daemon
+    stop_daemon
+}
+
+main "${@}"