fix: update CI to avoid running out of memory

.github/workflows/integration.yml

@@ -38,7 +38,13 @@ jobs:
 
       - name: Bring the stack up
         working-directory: ./ops
-        run: docker-compose up -d
+        run: |
+          ./scripts/stats.sh &
+          docker-compose up -d
+
+      - name: Wait for the Sequencer node
+        working-directory: ./ops
+        run: ./scripts/wait-for-sequencer.sh
 
       - name: Run the integration tests
         working-directory: ./ops
@@ -99,11 +105,11 @@ jobs:
         uses: jwalton/gh-docker-logs@v1
         with:
           images: 'ethereumoptimism/builder,ethereumoptimism/hardhat,ethereumoptimism/deployer,ethereumoptimism/data-transport-layer,ethereumoptimism/l2geth,ethereumoptimism/message-relayer,ethereumoptimism/batch-submitter,ethereumoptimism/l2geth,ethereumoptimism/integration-tests'
-          dest: './logs'
+          dest: '~/logs'
 
       - name: Tar logs
         if: failure()
-        run: tar cvzf ./logs.tgz ./logs
+        run: tar cvzf ./logs.tgz ~/logs
 
       - name: Upload logs to GitHub
         if: failure()

ops/scripts/stats.sh

+#!/bin/bash
+
+# set up the stats file
+mkdir ~/logs
+touch ~/logs/stats.txt
+
+while true; do
+  {
+    echo "$(date) ----------------";
+    echo "total memory usage --------------------------";
+    free -m;
+    echo "docker stats --------------------------------";
+    docker stats --no-stream;
+    echo "memory munchers -----------------------------";
+    ps aux --sort=-%mem | head;
+  } >> ~/logs/stats.txt
+  sleep 1;
+done