Deploying Choreo Connect as a Standalone Gateway on Docker Compose¶
Let's deploy an API in Choreo Connect running on Docker Compose as a Standalone Gateway. We can use WSO2 API Controller (apictl) the Command Line Tool to deploy the API.
Step 1 - Download and setup the Choreo Connect distribution and apictl¶
Download and install apictl
apictl is a CLI tool that can be used to deploy and undeploy APIs in the Choreo Connect clusters. Refer Download and initialize the CTL Tool to setup apictl in your development environment.
Download and extract the Choreo Connect distribution .zip file
The latest Choreo Connect distribution can be downloaded from https://wso2.com/choreo/choreo-connect/. Let's extract the Choreo Connect distribution .zip file and refer to the extracted location as
Step 2 - Initialize an API project¶
Navigate to a preferred workspace folder using the command line. Run the following command to create an API project named "petstore". This creates the folder structure for the artifacts to be included. Use the --oas option as given below to create an API project based on an OpenAPI definition.
apictl init petstore --oas <api definition path>
Let's use the Petstore sample OpenAPI definition
apictl init petstore --oas https://petstore.swagger.io/v2/swagger.json
The project is now initialized. A directory with the name "petstore" has been created.
The folder structure is similar to the following.
petstore ├── Client-certificates ├── Definitions │ └── swagger.yaml ├── Docs ├── Endpoint-certificates ├── Image ├── Interceptors ├── README.md ├── Sequences │ ├── fault-sequence │ ├── in-sequence │ └── out-sequence ├── api.yaml ├── api_meta.yaml └── libs
For more information on the API project directory that gets created, see Getting Started with apictl.
Step 3 - Start Choreo Connect¶
Start Choreo Connect on Docker Compose by executing the Docker Compose script inside the extracted distribution folder by navigating to
<CHOREO-CONNECT_HOME>/docker-compose/choreo-connect/ and executing the following command.
Click here if you are using an ARM64 based machine (e.g., Apple M1)
If you are trying this out in an ARM64 based machine (e.g., Apple M1), update the Docker image names with the following.
|Existing (Default) image name||Image name for tryout in ARM64 (e.g., Apple M1)|
Note that the above Ubuntu based (
*-ubuntu) images are for tryout purpose only and are not recommended for a production deployment.
docker-compose up -d
Once the containers are up and running, we can monitor the status of the containers using the following command.
docker ps | grep choreo-connect-
Step 4 - Deploy the API Project¶
Add the Choreo Connect Cluster as an Environment to apictl
To use apictl with Choreo Connect, we need to add the Choreo Connect cluster as an environment to apictl. Basically, the adapter URL will be added as the Gateway environment, and the added environment can be used in the subsequent commands.
apictl mg add env <ENVIRONMENT_NAME> --adapter <ADAPTER_URL>
apictl mg add env dev --adapter https://localhost:9843
Log in to the Choreo Connect Cluster
Next you need to log in to the Choreo Connect environment (log in to the adapter) in order to deploy the API in Choreo Connect.
apictl mg login dev -u <AUTHORIZED_USER_USERNAME> -p <USER_PASSWORD> -k
apictl mg login dev -u admin -p admin -k
The following apictl commands are executed with the flag
-kto avoid the SSL verification with Choreo Connect. To communicate via HTTPS without skipping the SSL verification (without -k flag), add the cert of Choreo Connect into
Deploy the API in Choreo Connect
Now let's deploy our first API to Choreo Connect using the project created in the step 3. Navigate to the location where the petstore project was initialized. Execute the following command to deploy the API in Choreo Connect.
apictl mg deploy api -f <PROJRECT_NAME> -e <ENVIRONMENT_NAME> -k
apictl mg deploy api -f petstore -e dev -k
Step 5 - Invoke the sample API¶
Obtain a token
After the APIs are exposed via WSO2 Choreo Connect, you can invoke an API with a valid access token (JWT) or using a test key.
Let's use WSO2 Choreo Connect's test key endpoint to obtain a test key in order to access the API. Refer Generate a Test JWT for more details.
TOKEN=$(curl -X POST "https://localhost:9095/testkey" -d "scope=read:pets" -H "Authorization: Basic YWRtaW46YWRtaW4=" -k -v)
You can obtain a JWT token from any third-party secure token service or via WSO2 API Manager, that is configured as an issuer in Choreo Connect.
Invoke the API
Execute the following command to Invoke the API using the test key. You can now invoke the API running on Choreo Connect using the following cURL command.
curl -X GET "<Docker-hostname>:<Docker-port>/<API-context>/<API-resource>" -H "Authorization: Bearer $TOKEN" -k
curl -X GET "https://localhost:9095/v2/pet/findByStatus?status=available" -H "accept: application/json" -H "Authorization:Bearer $TOKEN" -k