docker: configure config.toml using environment variable

Signed-off-by: Navratan Lal Gupta <navilg0409@gmail.com>

README.md

@@ -84,16 +84,18 @@ There are mainly 2 ways of installing Perplexica - With Docker, Without Docker.
 
 3. After cloning, navigate to the directory containing the project files.
 
-4. Rename the `sample.config.toml` file to `config.toml`. For Docker setups, you need only fill in the following fields:
+4. Update environment variables in `docker-compose.yml` file to configure `config.toml`. 
 
-   - `OPENAI`: Your OpenAI API key. **You only need to fill this if you wish to use OpenAI's models**.
-   - `OLLAMA`: Your Ollama API URL. You should enter it as `http://host.docker.internal:PORT_NUMBER`. If you installed Ollama on port 11434, use `http://host.docker.internal:11434`. For other ports, adjust accordingly. **You need to fill this if you wish to use Ollama's models instead of OpenAI's**.
-   - `GROQ`: Your Groq API key. **You only need to fill this if you wish to use Groq's hosted models**.
-   - `ANTHROPIC`: Your Anthropic API key. **You only need to fill this if you wish to use Anthropic models**.
+Example: 
 
-     **Note**: You can change these after starting Perplexica from the settings dialog.
+Below section in `config.toml` can be configured using variables `MODELS_CUSTOM_OPENAI_API_KEY="sk-123456"`, `MODELS_CUSTOM_OPENAI_API_URL="http://localopenai:11134"` and `MODELS_CUSTOM_OPENAI_MODEL_NAME="meta-llama/llama-4"`
 
-   - `SIMILARITY_MEASURE`: The similarity measure to use (This is filled by default; you can leave it as is if you are unsure about it.)
+```toml
+[MODELS.CUSTOM_OPENAI]
+API_KEY = "sk-123456"
+API_URL = "http://localopenai:11134"
+MODEL_NAME = "meta-llama/llama-4"
+```
 
 5. Ensure you are in the directory containing the `docker-compose.yaml` file and execute:
 

app.dockerfile

@@ -21,7 +21,9 @@ COPY --from=builder /home/perplexica/.next/static ./public/_next/static
 
 COPY --from=builder /home/perplexica/.next/standalone ./
 COPY --from=builder /home/perplexica/data ./data
+COPY sample.config.toml /home/perplexica/config.toml
+COPY container_entrypoint.sh /home/perplexica/container_entrypoint.sh
 
 RUN mkdir /home/perplexica/uploads
 
-CMD ["node", "server.js"]
+CMD ["bash", "/home/perplexica/container_entrypoint.sh"]

container_entrypoint.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+CONFIG_TOML_FILE=/home/perplexica/config.toml
+
+TMP_FILE=${CONFIG_TOML_FILE}.tmp
+touch $TMP_FILE
+
+while IFS= read -r line; do
+    # Check if line is a section header (e.g., "[GENERAL]")
+    if [[ "$line" =~ ^\[([^]]+)\] ]]; then
+        current_section="${BASH_REMATCH[1]}"
+        echo "$line" >> "$TMP_FILE"
+        continue
+    fi
+
+    # Skip empty lines and comments
+    if [[ -z "$line" || "$line" =~ ^[[:space:]]*\# ]]; then
+        echo "$line" >> "$TMP_FILE"
+        continue
+    fi
+
+    # Extract key and value (handling quoted values)
+    key=$(echo "$line" | cut -d '=' -f 1 | xargs)
+    value=$(echo "$line" | cut -d '=' -f 2- | xargs)
+
+
+    # Construct the environment variable name in form of SECTION_KEY (e.g., GENERAL_SIMILARITY_MEASURE, MODELS_GEMINI_API_KEY)
+    current_section=$(echo "$current_section" | sed 's/\./_/')
+    env_var_name="${current_section}_${key}"
+
+    # Check if the environment variable exists
+    env_var_value=$(echo "${!env_var_name}")
+    if [ -n "$env_var_value" ]; then
+        new_value="$env_var_value"
+        echo "$key = $new_value" >> "$TMP_FILE"
+    else
+        # Keep original line if no env var exists
+        echo "$line" >> "$TMP_FILE"
+    fi
+
+done < "$CONFIG_TOML_FILE"
+
+# Replace the original file
+mv "$TMP_FILE" "$CONFIG_TOML_FILE"
+
+echo "Config file updated successfully."
+
+# Start server
+node server.js

docker-compose.yaml

@@ -16,6 +16,19 @@ services:
       dockerfile: app.dockerfile
     environment:
       - SEARXNG_API_URL=http://searxng:8080
+      - GENERAL_SIMILARITY_MEASURE="cosine" # "cosine" or "dot"
+      - GENERAL_KEEP_ALIVE="5m"             # How long to keep Ollama models loaded into memory. (Instead of using -1 use "-1m")
+      - MODELS_OPENAI_API_KEY=""
+      - MODELS_GROQ_API_KEY=""
+      - MODELS_ANTHROPIC_API_KEY=""
+      - MODELS_GEMINI_API_KEY=""
+      - MODELS_CUSTOM_OPENAI_API_KEY=""
+      - MODELS_CUSTOM_OPENAI_API_URL=""
+      - MODELS_CUSTOM_OPENAI_MODEL_NAME=""
+      - MODELS_OLLAMA_API_KEY=""            # Ollama API URL - http://host.docker.internal:11434
+      - MODELS_DEEPSEEK_API_KEY=""
+      - MODELS_LM_STUDIO_API_KEY=""         # LM Studio API URL - http://host.docker.internal:1234
+      - API_ENDPOINTS_SEARXNG=""            # SearxNG API URL - http://localhost:32768
     ports:
       - 3000:3000
     networks:
@@ -23,7 +36,6 @@ services:
     volumes:
       - backend-dbstore:/home/perplexica/data
       - uploads:/home/perplexica/uploads
-      - ./config.toml:/home/perplexica/config.toml
     restart: unless-stopped
 
 networks: