Ledger Increase Check

docker/compose/suzuka-full-node/docker-compose.ledger-should-progress.yml

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+services:
+
+  # This service checks if the ledger version has increased every LEDGER_INCREASE_PERIOD_SECONDS
+  ledger-should-progress:
+    image: alpine:latest
+    container_name: ledger-should-progress
+    command: >
+      sh -c '
+        # install jq and curl for busybox
+        apk add --no-cache jq curl
+
+        # sleep a little to allow the full node to get through some startup
+        sleep 20
+
+        LAST_LEDGER_VERSION=0
+        # check the ledger version has increased every LEDGER_INCREASE_PERIOD_SECONDS
+        while true; do
+          sleep $${LEDGER_INCREASE_PERIOD_SECONDS}
+
+          # Get the current ledger version from the response using curl and busybox-friendly parsing
+          echo "$$(curl -s $${SUZUKA_FULL_NODE_CONNECTION}/v1)"
+          CURRENT_LEDGER_VERSION=$$(curl -s $${SUZUKA_FULL_NODE_CONNECTION}/v1 | jq -r ".ledger_version" | tr -d "\"")
+
+          # Check if we got a valid ledger version
+          if [ -z "$$CURRENT_LEDGER_VERSION" ]; then
+            echo "Failed to retrieve the current ledger version."
+            exit 1
+          fi
+
+          # Compare the current ledger version with the last one
+          if [ "$$CURRENT_LEDGER_VERSION" -le "$$LAST_LEDGER_VERSION" ]; then
+            echo "Ledger version has not increased in the last $${LEDGER_INCREASE_PERIOD_SECONDS} seconds."
+            exit 1
+          else
+            echo "Ledger version has increased from $$LAST_LEDGER_VERSION to $$CURRENT_LEDGER_VERSION."
+          fi
+
+          # Update the last ledger version to the current one
+          LAST_LEDGER_VERSION=$$CURRENT_LEDGER_VERSION
+        done
+      '
+    environment:
+      DOT_MOVEMENT_PATH: /.movement
+      LEDGER_INCREASE_PERIOD_SECONDS: ${LEDGER_INCREASE_PERIOD_SECONDS-300}
+      SUZUKA_FULL_NODE_CONNECTION: http://suzuka-full-node:30731
+    volumes:
+      - ${DOT_MOVEMENT_PATH}:/.movement
+    depends_on:
+      suzuka-full-node:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "echo", "true"]
+      interval: 1m30s
+      timeout: 30s
+      retries: 5
+      start_period: 30s
+
+  # Here we use a dependent service to trigger application crash, i.e., throughout docker-compose 
+  ledger-should-progress-watcher:
+    image: busybox
+    container_name: ledger-should-progress-watcher
+    command: >
+      sh -c '
+        while true; do
+          sleep 1000
+        done
+      '
+    depends_on:
+      ledger-should-progress:
+        condition: service_healthy

docker/compose/suzuka-full-node/ledger-should-progress.sh

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+# install jq if in busybox
+if [ -f /etc/alpine-release ]; then
+    echo "Installing jq using apk (Alpine Linux environment)..."
+    apk add --no-cache jq
+else
+    echo "BusyBox detected, but not Alpine Linux. Manual jq installation required."
+fi
+
+LAST_LEDGER_VERSION=0
+# check the ledger version has increased every LEDGER_INCREASE_PERIOD_SECONDS
+while true; do
+  sleep ${LEDGER_INCREASE_PERIOD_SECONDS}
+
+  # Get the current ledger version from the response using curl and busybox-friendly parsing
+  echo $(curl -s ${SUZUKA_FULL_NODE_CONNECTION}/v1 | jq -r '.ledger_version' | tr -d '"')
+  CURRENT_LEDGER_VERSION=$(curl -s ${SUZUKA_FULL_NODE_CONNECTION}/v1 | jq -r '.ledger_version' | tr -d '"')
+
+  # Check if we got a valid ledger version
+  if [ -z "$CURRENT_LEDGER_VERSION" ]; then
+    echo "Failed to retrieve the current ledger version."
+    exit 1
+  fi
+
+  # Compare the current ledger version with the last one
+  if [ "$CURRENT_LEDGER_VERSION" -le "$LAST_LEDGER_VERSION" ]; then
+    echo "Ledger version has not increased in the last ${LEDGER_INCREASE_PERIOD_SECONDS} seconds."
+    exit 1
+  fi
+
+  # Update the last ledger version to the current one
+  LAST_LEDGER_VERSION=$CURRENT_LEDGER_VERSION
+done