Initial Cezen AI Suite installer — Entry tier

ansible/roles/chromadb/tasks/main.yml

@@ -0,0 +1,53 @@
+---
+# ChromaDB — vector database for RAG pipelines
+- name: Install ChromaDB in cezen conda env
+  become_user: cezen
+  shell: |
+    /opt/cezen/miniconda/bin/conda run -n cezen pip install chromadb
+  retries: 3
+  delay: 10
+
+- name: Create ChromaDB data directory
+  file:
+    path: /opt/cezen/data/chromadb
+    state: directory
+    owner: cezen
+    group: cezen
+
+- name: Create ChromaDB systemd service
+  copy:
+    dest: /etc/systemd/system/chromadb.service
+    content: |
+      [Unit]
+      Description=ChromaDB Vector Database
+      After=network.target
+
+      [Service]
+      Type=simple
+      User=cezen
+      Group=cezen
+      WorkingDirectory=/opt/cezen/data/chromadb
+      ExecStart=/opt/cezen/miniconda/envs/cezen/bin/chroma run \
+        --host 0.0.0.0 \
+        --port 8100 \
+        --path /opt/cezen/data/chromadb
+      Restart=always
+      RestartSec=5
+      Environment="PATH=/opt/cezen/miniconda/envs/cezen/bin:/usr/local/bin:/usr/bin:/bin"
+
+      [Install]
+      WantedBy=multi-user.target
+    mode: "0644"
+
+- name: Enable and start ChromaDB
+  systemd:
+    name: chromadb
+    enabled: yes
+    state: started
+    daemon_reload: yes
+
+- name: Wait for ChromaDB to be ready
+  wait_for:
+    host: localhost
+    port: 8100
+    timeout: 30