fix(docker): generic naming (mosaic-*), env-var-only config, no hardcoded values

- Renamed all jarvis-* to mosaic-* (generic for any deployment)
- Config files are .json.template with ${VAR} placeholders
- entrypoint.sh renders templates via envsubst at startup
- Ollama is optional: set OLLAMA_BASE_URL to auto-inject provider
- Model is configurable via OPENCLAW_MODEL env var
- No hardcoded IPs, keys, model names, or user preferences
- Updated README with full env var reference

docker/openclaw-instances/entrypoint.sh

@@ -0,0 +1,53 @@
+#!/bin/sh
+# Mosaic Agent Fleet — OpenClaw container entrypoint
+# Renders config template from env vars, optionally adds Ollama provider, starts gateway
+set -e
+
+TEMPLATE="/config/openclaw.json.template"
+CONFIG="/tmp/openclaw.json"
+
+if [ ! -f "$TEMPLATE" ]; then
+  echo "ERROR: Config template not found at $TEMPLATE"
+  echo "Mount your config volume at /config with a .json.template file"
+  exit 1
+fi
+
+# Validate required env vars
+: "${OPENCLAW_GATEWAY_TOKEN:?OPENCLAW_GATEWAY_TOKEN is required (generate: openssl rand -hex 32)}"
+
+# Render template with env var substitution
+envsubst < "$TEMPLATE" > "$CONFIG"
+
+# If OLLAMA_BASE_URL is set, inject Ollama provider into config
+if [ -n "$OLLAMA_BASE_URL" ]; then
+  # Use python3 if available, fall back to node
+  if command -v python3 >/dev/null 2>&1; then
+    python3 -c "
+import json, sys
+with open('$CONFIG') as f: cfg = json.load(f)
+cfg.setdefault('models', {})['mode'] = 'merge'
+cfg['models'].setdefault('providers', {})['ollama'] = {
+  'baseUrl': '$OLLAMA_BASE_URL/v1',
+  'api': 'openai-completions',
+  'models': [{'id': '${OLLAMA_MODEL:-cogito}', 'name': '${OLLAMA_MODEL:-cogito} (Local)', 'reasoning': False, 'input': ['text'], 'cost': {'input':0,'output':0,'cacheRead':0,'cacheWrite':0}, 'contextWindow': 128000, 'maxTokens': 8192}]
+}
+with open('$CONFIG','w') as f: json.dump(cfg, f, indent=2)
+"
+    echo "Ollama provider added: $OLLAMA_BASE_URL (model: ${OLLAMA_MODEL:-cogito})"
+  elif command -v node >/dev/null 2>&1; then
+    node -e "
+const fs = require('fs');
+const cfg = JSON.parse(fs.readFileSync('$CONFIG','utf8'));
+cfg.models = cfg.models || {}; cfg.models.mode = 'merge';
+cfg.models.providers = cfg.models.providers || {};
+cfg.models.providers.ollama = {baseUrl:'$OLLAMA_BASE_URL/v1',api:'openai-completions',models:[{id:'${OLLAMA_MODEL:-cogito}',name:'${OLLAMA_MODEL:-cogito} (Local)',reasoning:false,input:['text'],cost:{input:0,output:0,cacheRead:0,cacheWrite:0},contextWindow:128000,maxTokens:8192}]};
+fs.writeFileSync('$CONFIG', JSON.stringify(cfg, null, 2));
+"
+    echo "Ollama provider added: $OLLAMA_BASE_URL (model: ${OLLAMA_MODEL:-cogito})"
+  else
+    echo "WARNING: OLLAMA_BASE_URL set but no python3/node available to inject provider"
+  fi
+fi
+
+export OPENCLAW_CONFIG_PATH="$CONFIG"
+exec openclaw gateway run --bind lan --auth token "$@"