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Consul

Since v0.28.0

Introduction

The Testcontainers module for Consul.

Adding this module to your project dependencies

Please run the following command to add the Consul module to your Go dependencies:

go get github.com/testcontainers/testcontainers-go/modules/consul

Usage example

ctx := context.Background()

consulContainer, err := consul.Run(ctx, "hashicorp/consul:1.15")
defer func() {
    if err := testcontainers.TerminateContainer(consulContainer); err != nil {
        log.Printf("failed to terminate container: %s", err)
    }
}()
if err != nil {
    log.Printf("failed to start container: %s", err)
    return
}

Module Reference

Run function

Info

The RunContainer(ctx, opts...) function is deprecated and will be removed in the next major release of Testcontainers for Go.

The Consul module exposes one entrypoint function to create the Consul container, and this function receives three parameters:

func Run(ctx context.Context, img string, opts ...testcontainers.ContainerCustomizer) (*ConsulContainer, error)
  • context.Context, the Go context.
  • string, the Docker image to use.
  • testcontainers.ContainerCustomizer, a variadic argument for passing options.

Image

Use the second argument in the Run function to set a valid Docker image. In example: Run(context.Background(), "hashicorp/consul:1.15").

Container Options

When starting the Consul container, you can pass options in a variadic way to configure it.

Configuration File

If you need to customize the behavior for the deployed node you can use either WithConfigString(config string) or WithConfigFile(configPath string). The configuration has to be in JSON format and will be loaded at the node startup.

The following options are exposed by the testcontainers package.

Basic Options

Lifecycle Options

Files & Mounts Options

Build Options

Logging Options

Image Options

Networking Options

Advanced Options

Experimental Options

Container Methods

The Consul container exposes the following method:

ApiEndpoint

This method returns the connection string to connect to the Consul container API, using the default 8500 port.

ctx := context.Background()

consulContainer, err := consul.Run(ctx, "hashicorp/consul:1.15")
defer func() {
    if err := testcontainers.TerminateContainer(consulContainer); err != nil {
        log.Printf("failed to terminate container: %s", err)
    }
}()
if err != nil {
    log.Printf("failed to start container: %s", err)
    return
}

endpoint, err := consulContainer.ApiEndpoint(ctx)
if err != nil {
    log.Printf("failed to get endpoint: %s", err)
    return
}

config := capi.DefaultConfig()
config.Address = endpoint
client, err := capi.NewClient(config)
if err != nil {
    log.Printf("failed to connect to Consul: %s", err)
    return
}