Cassandra v0.0.2 helm (#46)

Author: jaya-kops

charts/cassandra/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "1.0"
 description: Helm chart for deploying cassandra
 name: cassandra
-version: 0.0.1
+version: 0.0.2
 icon: "https://zop.dev/logo.png"
 maintainers:
   - name: ZopDev

charts/cassandra/templates/database-config.yaml

@@ -5,9 +5,9 @@ metadata:
   name: {{ $.Release.Name }}-{{ $service.database }}-{{ $service.name }}-cassandra-configmap
   namespace: {{ $.Release.Namespace }}
 data:
-  Hosts: {{ $.Release.Name }}-cassandra
-  Keyspace: "{{ $service.database }}" 
-  Port: "9042"
-  Username: "{{ $service.name }}-user"
+  CASSANDRA_HOST: {{ $.Release.Name }}-cassandra
+  CASSANDRA_KEYSPACE: "{{ $service.database }}" 
+  CASSANDRA_PORT: "9042"
+  CASSANDRA_USERNAME: "{{ $service.name }}-user"
 ---
 {{- end }}

charts/cassandra/templates/database-pod.yaml

@@ -13,7 +13,6 @@ spec:
         - -c
         - |
           echo "Initializing Cassandra Pod...";
-          sleep 60;
           cqlsh {{ $.Release.Name }}-cassandra -u superuser -p $POD_PASSWORD -e "SOURCE '/etc/config/init-schema.cql';"
       env:
         - name: POD_PASSWORD

charts/cassandra/templates/database-secret.yaml

@@ -6,6 +6,6 @@ metadata:
   namespace: {{ $.Release.Namespace }}
 type: Opaque
 data:
-  db_password: {{  $service.password | b64enc }}
+  CASSANDRA_PASSWORD: {{  $service.password | b64enc }}
 ---
 {{- end }}

charts/cassandra/templates/init-script-config-map.yaml

@@ -10,7 +10,7 @@ data:
     WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1};
 
     USE "{{ $service.database }}";
-    CREATE ROLE IF NOT EXISTS "{{ $service.name }}-user" WITH PASSWORD '{{ $service.password }}' AND LOGIN = true;
+    CREATE ROLE IF NOT EXISTS "{{ $service.name }}-user" WITH PASSWORD = '{{ $service.password }}' AND LOGIN = true;
     GRANT ALL PERMISSIONS ON KEYSPACE "{{ $service.database }}" TO "{{ $service.name }}-user";
 ---
 {{- end }}

charts/cassandra/templates/statefulset.yaml

@@ -20,6 +20,19 @@ spec:
         - name: cassandra
           image: {{ .Values.image }}
           imagePullPolicy: {{ .Values.pullPolicy }}
+          command:
+            - bash
+            - -ec
+            - |
+              # Node 0 is the password seeder
+              if [[ $POD_NAME =~ (.*)-0$ ]]; then
+                echo "Setting node as password seeder"
+                export CASSANDRA_PASSWORD_SEEDER=yes
+              else
+                # Only node 0 will execute the startup initdb scripts
+                export CASSANDRA_IGNORE_INITDB_SCRIPTS=1
+              fi
+              /opt/bitnami/scripts/cassandra/entrypoint.sh /opt/bitnami/scripts/cassandra/run.sh
           ports:
             - containerPort: 9042
           resources:
@@ -36,6 +49,29 @@ spec:
               value: "{{ .Values.config.num_tokens }}"
             - name: CASSANDRA_SEEDS
               value: "{{ .Release.Name }}-cassandra-0.{{ .Release.Name }}-cassandra.{{ .Release.Namespace }}.svc.cluster.local"
+            - name: CASSANDRA_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ $.Release.Name }}-cassandra-database-secret
+                  key: pod_password
+            - name: CASSANDRA_USER
+              value: "superuser"
+            - name: CASSANDRA_DATACENTER
+              value: {{ .Values.config.datacenter }}
+            - name: CASSANDRA_RACK
+              value: {{ .Values.config.rack }}
+            - name: CASSANDRA_KEYSTORE_LOCATION
+              value: "/opt/bitnami/cassandra/certs/keystore"
+            - name: CASSANDRA_TRUSTSTORE_LOCATION
+              value: "/opt/bitnami/cassandra/certs/truststore"
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
           lifecycle:
             preStop:
               exec:
@@ -66,6 +102,18 @@ spec:
           volumeMounts:
             - name: {{.Release.Name }}-cassandra-data
               mountPath: /var/lib/cassandra
+            - name: empty-dir
+              mountPath: /tmp
+              subPath: tmp-dir
+            - name: empty-dir
+              mountPath: /opt/bitnami/cassandra/conf
+              subPath: app-conf-dir
+            - name: empty-dir
+              mountPath: /opt/bitnami/cassandra/tmp
+              subPath: app-tmp-dir
+      volumes:
+        - name: empty-dir
+          emptyDir: {}
   volumeClaimTemplates:
     - metadata:
         name: {{.Release.Name }}-cassandra-data

charts/cassandra/values.yaml

@@ -1,19 +1,21 @@
-image: cassandra:4.1.0
+image: "bitnami/cassandra:5.0.2-debian-12-r3"
 pullPolicy: IfNotPresent
 
 resources:
   requests:
     memory: "2000Mi"
-    cpu: "1000m"
+    cpu: "500m"
   limits:
     memory: "4000Mi"
-    cpu: "2000m"
+    cpu: "1000m"
 
 diskSize: 10Gi
 
 config:
   cluster_name: "Cluster"
   num_tokens: 256
+  datacenter: dc1
+  rack: rack1
 
 cassandradbRootPassword:
 

docs/cassandra-v0.0.2.tgz

@@ -3,7 +3,20 @@ entries:
   cassandra:
   - apiVersion: v1
     appVersion: "1.0"
-    created: "2024-12-27T16:27:14.771661+05:30"
+    created: "2024-12-27T15:17:31.790133+05:30"
+    description: Helm chart for deploying cassandra
+    digest: f45dea69d490bc1e07764fc2e632cabda6465b4a99d12ed6c78eb4646b742e11
+    icon: https://zop.dev/logo.png
+    maintainers:
+    - name: ZopDev
+      url: zop.dev
+    name: cassandra
+    urls:
+    - https://helm.zop.dev/cassandra-v0.0.2.tgz
+    version: v0.0.2
+  - apiVersion: v1
+    appVersion: "1.0"
+    created: "2024-12-27T15:17:31.789898+05:30"
     description: Helm chart for deploying cassandra
     digest: 87dcf6e85af6afe5ff9c90bb29272edbc9cb21ce8019361015b1733442644ca9
     icon: https://zop.dev/logo.png