fix: enable search (fix opensearch security, enable es, bump web memory)

- Fix OpenSearch security plugin: change "true" string to true boolean
  in cluster.yaml to actually disable security (TLS + auth)
- Enable elasticsearch in mastodon connecting to shared-os cluster
  (port 9200, TLS disabled, single_node_cluster preset)
- Enable deploySearch hook to build search indexes
- Increase mastodon-web memory limit from 512Mi to 1Gi to fix OOMKill

argocd/apps/mastodon.yaml

@@ -32,7 +32,7 @@ spec:
 
             hooks:
               deploySearch:
-                enabled: false
+                enabled: true
 
             s3:
               enabled: true
@@ -50,7 +50,7 @@ spec:
                   memory: 256Mi
                 limits:
                   cpu: 500m
-                  memory: 512Mi
+                  memory: 1Gi
 
             sidekiq:
               workers:
@@ -111,7 +111,11 @@ spec:
             password: change-me
 
           elasticsearch:
-            enabled: false
+            enabled: true
+            hostname: shared-os.opensearch.svc.cluster.local
+            port: 9200
+            tls: false
+            preset: single_node_cluster
           ingress:
             enabled: true
             className: traefik

manifests/opensearch/cluster.yaml

@@ -9,7 +9,7 @@ spec:
     serviceName: shared-os
     setVMMaxMapCount: true
     additionalConfig:
-      plugins.security.disabled: "true"
+      plugins.security.disabled: true
   nodePools:
     - component: nodes
       replicas: 3