feat(sipi): add clean temp dir cronjob (DEV-2090)

build.sbt

@@ -101,6 +101,10 @@ lazy val sipi: Project = Project(id = "sipi", base = file("sipi"))
     Universal / mappings ++= {
       directory("sipi/scripts")
     },
+    dockerCommands += Cmd(
+      "RUN",
+      "mv /sipi/scripts/entrypoint.sh /sipi/ && chmod +x /sipi/entrypoint.sh && apt-get update && apt-get install -y cron curl && rm -rf /var/lib/apt/lists/*"
+    ), // install cron and curl for periodically cleaning temp dir
     dockerCommands += Cmd(
       """HEALTHCHECK --interval=15s --timeout=5s --retries=3 --start-period=30s \
         |CMD bash /sipi/scripts/healthcheck.sh || exit 1""".stripMargin
@@ -119,7 +123,10 @@ lazy val sipi: Project = Project(id = "sipi", base = file("sipi"))
 
       // don't filter the rest; don't filter out anything that doesn't match a pattern
       case cmd => false
-    }
+    },
+    // add our own entrypoint and also cmd because it is reset when overriding the entrypoint
+    dockerCommands += ExecCmd("ENTRYPOINT", "/sipi/entrypoint.sh"),
+    dockerCommands += ExecCmd("CMD", "--config=/sipi/config/sipi.config.lua")
   )
 
 //////////////////////////////////////

sipi/scripts/clean_temp_dir.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -eo pipefail
+
+error_msg() {
+  echo "$(date): failed cleaning temp dir" >> "$log_file"
+}
+trap error_msg ERR
+
+# Clear log
+log_file="/var/log/cleanTempDir.log"
+> "$log_file"
+
+echo "$(date): calling clean_temp_dir route" >> "$log_file"
+
+# Call route
+curl -u "${CLEAN_TMP_DIR_USER}:${CLEAN_TMP_DIR_PW}" -sS -L --fail 'http://localhost:1024/clean_temp_dir' >> "$log_file" 2>&1
+if [ $? -ne 0 ]; then
+  echo "$(date): route returned an error status" >> "$log_file"
+  exit 1
+fi
+
+echo "$(date): successfully called clean_temp_dir route" >> "$log_file"

sipi/scripts/entrypoint.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -o pipefail
+
+if [ -n "$CLEAN_TMP_DIR_CRON_SCHEDULE" ]; then
+  parts=$(echo "$CLEAN_TMP_DIR_CRON_SCHEDULE" | wc -w)
+  command="/bin/bash /sipi/scripts/clean_temp_dir.sh"
+
+  # Validate and install clean temp dir crontab
+  [ "$parts" -eq 5 ] && (crontab -l 2>/dev/null; echo "$CLEAN_TMP_DIR_CRON_SCHEDULE $command") | crontab - 2>/dev/null
+  if [ $? -ne 0 ]; then
+    echo "Invalid clean temp dir cron schedule: $CLEAN_TMP_DIR_CRON_SCHEDULE" >&2
+    exit 1
+  fi
+
+  # Start cron process in background
+  cron &
+fi
+
+# Start SIPI
+cd /sipi && ./sipi "$@"

sipi/scripts/healthcheck.sh

@@ -1,3 +1,15 @@
 #!/bin/bash
 
+if [ -n "$CLEAN_TMP_DIR_CRON_SCHEDULE" ]; then
+  pgrep -x "cron" >/dev/null
+  if [ $? -ne 0 ]; then
+    echo "Cron is not running"
+    exit 1
+  fi
+fi
+
 curl -sS --fail 'http://localhost:1024/server/test.html'
+if [ $? -ne 0 ]; then
+  echo "SIPI did not respond to /server/test.html route"
+  exit 1
+fi