Clean up old CAR files at 10% chance (#457)

* Clean up old CAR files at 10% chance

* carall too

* fix brackets

container/shim/src/utils/system.js

@@ -4,7 +4,7 @@ import { debug as Debug } from "./logging.js";
 import { promisify } from "node:util";
 import { exec as CpExec } from "node:child_process";
 import prettyBytes from "pretty-bytes";
-import { SPEEDTEST_SERVER_CONFIG } from "../config.js";
+import { NETWORK, SPEEDTEST_SERVER_CONFIG } from "../config.js";
 
 const exec = promisify(CpExec);
 
@@ -48,8 +48,8 @@ export async function getDiskStats() {
   const usedDiskMB = valuesMB[2];
   const availableDiskMB = valuesMB[3];
   debug(`Disk Total: ${totalDiskMB / 1000} GB Used: ${usedDiskMB / 1000} GB Available: ${availableDiskMB / 1000} GB`);
-  if (availableDiskMB <= 50 * 1000) {
-    // 50 GB
+  if (availableDiskMB <= (NETWORK === "test" ? 10 : 50) * 1000) {
+    // 50 GB for mainnet, 10 GB for testnet
     debug(
       `WARNING: Full disk. Cache will be rotated and affect performance severely. Please consider upgrading your L1 node disk space.`
     );

container/start.sh

@@ -25,6 +25,13 @@ echo "$(date -u) [container] Disk: $(df -h /usr/src/app/shared | awk '(NR>1)')"
 mkdir -p /usr/src/app/shared/ssl
 mkdir -p /usr/src/app/shared/nginx_log
 
+# Clean up old cached CAR files with 10% chance and if not already cleaned up
+if [ "$RANDOM" -lt 3277 ] && [ ! -f "/usr/src/app/shared/cleaned_cache" ]; then
+  echo "$(date -u) [container] Cleaning up old cached CAR files"
+  grep -rl '/usr/src/app/shared/nginx_cache' -e 'carentity' -e 'carall' | xargs rm -f
+  touch /usr/src/app/shared/cleaned_cache
+fi
+
 L1_CONF_FILE=/etc/nginx/conf.d/L1.conf
 
 # If we have a cert, start nginx with TLS, else without (but always start the shim)