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Development guide

Here, we give an overview of a development setup for Armada that is closely aligned with how Armada is built and tested in CI.

Before starting, please ensure you have installed Go (version 1.18 or later), gcc (for Windows, see, e.g., tdm-gcc), mage, docker, kubectl, and, if you need to compile .proto files, protoc.

Then, use the following commands to setup a local Armada system.

# Download Go dependencies.
go get
go mod tidy

# Install necessary tooling.
mage BootstrapTools

# Compile .pb.go files from .proto files
# (only necessary after changing a .proto file).
mage proto

# Setup up a kind (i.e., Kubernetes-in-Docker) cluster; see
# https://kind.sigs.k8s.io/ for details.
mage Kind

# Start necessary dependencies.
# On Arm-based Macs, you may need to change the pulsar image
# in docker-compose.yaml to be kezhenxu94/pulsar.
docker-compose up -d redis postgres pulsar eventingester

# Verify that dependencies started successfully
# (check that redis, stan, postgres, and pulsar are all up).
docker ps

# Build a Docker image containing the Armada server and executor
# and run them in separate containers.
# Alternatively, run the Armada server and executor directly on the host,
# e.g., through your IDE; see below for more information.
mage buildDockers "bundle"
docker-compose up -d server executor

Run the Armada test suite against the local environment to verify that it is working correctly.

# Create an Armada queue to submit jobs to.
go run cmd/armadactl/main.go create queue e2e-test-queue

# Run the Armada test suite against the local environment.
# (The ingress test requires additional setup and will fail using this setup.)
go run cmd/testsuite/main.go test --tests "testsuite/testcases/basic/*" --junit junit.xml

Tear down the local environment using the following:

# Stop Armada components and dependencies.
docker-compose down

# Tear down the kind cluster.
mage KindTeardown

Running the Armada server and executor in Visual Studio Code

To run the Armada server and executor from Visual Studio Code for debugging purposes, add, e.g., the following config to .vscode/launch.json and start both from the "Run and Debug" menu (see the Visual Studio Code documentation for more information).

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "server",
            "type": "go",
            "request": "launch",
            "mode": "auto",
            "env": {
                "CGO_ENABLED": "0",
                // Necessary config overrides.
                "ARMADA_REDIS_ADDRS": "localhost:6379",
                "ARMADA_EVENTSREDIS_ADDRS": "localhost:6379",
                "ARMADA_EVENTSNATS_SERVERS": "nats://localhost:4222",
                "ARMADA_EVENTAPI_POSTGRES_CONNECTION_HOST": "localhost",
                "ARMADA_POSTGRES_CONNECTION_HOST": "localhost",
                "ARMADA_PULSAR_URL": "pulsar://localhost:6650"
            },
            "cwd": "${workspaceFolder}/",
            "program": "${workspaceFolder}/cmd/armada/main.go",
            "args": [
                "--config", "${workspaceFolder}/localdev/config/armada/config.yaml"                
            ]
        },
        {
            "name": "executor",
            "type": "go",
            "request": "launch",
            "mode": "auto",
            "env": {
                "CGO_ENABLED": "0",
                "ARMADA_APICONNECTION_ARMADAURL": "localhost:50051",
                "KUBECONFIG": "${workspaceFolder}/.kube/external/config"
            },
            "cwd": "${workspaceFolder}/",
            "program": "${workspaceFolder}/cmd/executor/main.go",
            "args": [
                "--config", "${workspaceFolder}/localdev/config/executor/config.yaml"
            ]
        }
    ],
    "compounds": [
        {
          "name": "server/executor",
          "configurations": ["server", "executor"],
          "stopAll": true
        }
      ]    
}