Enhance liveness check with @razee/kubernetes-util (#9)

razee-io · Aug 1, 2019 · 1e31e97 · 1e31e97
1 parent 8d16e3d
commit 1e31e97
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Showing 5 changed files with 59 additions and 23 deletions.
diff --git a/kubernetes/RemoteResource/resource.yaml b/kubernetes/RemoteResource/resource.yaml
@@ -44,7 +44,7 @@ items:
                 command:
                 - sh/liveness.sh
               initialDelaySeconds: 30
-              periodSeconds: 300
+              periodSeconds: 150
               timeoutSeconds: 30
               failureThreshold: 1
             volumeMounts:

diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -40,7 +40,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@razee/kapitan-core": "^0.3.0",
-    "@razee/kubernetes-util": "0.0.4",
+    "@razee/kubernetes-util": "0.0.6",
     "bunyan": "^1.8.12",
     "clone": "^2.1.2",
     "request-promise-native": "^1.0.7"

diff --git a/sh/liveness.sh b/sh/liveness.sh
@@ -15,4 +15,17 @@
 # limitations under the License.
 ################################################################################
 
-exit 0
+HEALTH_FILE=/tmp/liveness
+AGE=${1:-'5'} #Default 5 minutes
+
+findFile=$(find "${HEALTH_FILE}" -mmin "-${AGE}" 2>/dev/null)
+if [ $? -ne 0 ]; then
+  echo "FAILING liveness probe. ${HEALTH_FILE} does not exist."
+  exit 1
+elif [ "${findFile}" = "" ]; then
+  echo "FAILING liveness probe. ${HEALTH_FILE} has not been touched in ${AGE} minutes."
+  exit 1
+else
+  # echo "file is good"
+  exit 0
+fi
diff --git a/src/index.js b/src/index.js
@@ -31,7 +31,8 @@ async function main() {
       kubeResourceMeta: resourceMeta,
       factory: Controller,
       kubeClass: kc,
-      logger: log
+      logger: log,
+      livenessInterval:true
     };
     new EventHandler(params);
   } else {