Testcontainers will respect the following environment variables:ĭOCKER_HOST = unix:///var/run/docker.sock However, sometimes customization is required. Testcontainers will attempt to detect the Docker environment and configure everything to work automatically. Specifies for how long Testcontainers will try to connect to the Docker client to obtain valid info about the client before giving up and trying next strategy, if applicable (in seconds). Customizing image pull behaviourīy default Testcontainers will abort the pull of an image if the pull appears stalled (no data transferred) for longer than this duration (in seconds). Note that Testcontainers will continue doing the cleanup at JVM's shutdown, unless you kill -9 your JVM process. TESTCONTAINERS_RYUK_DISABLED environment variable to true. If your environment already implements automatic cleanup of containers after the execution,īut does not allow starting privileged containers, you can turn off the Ryuk container by setting Ryuk must be started as a privileged container. In some environments ryuk must be started in privileged mode to work properly (-privileged flag) Disabling Ryuk The resource reaper is responsible for container removal and automatic cleanup of dead containers at JVM shutdown Used by Apache Pulsar Customizing Ryuk resource reaper Used by VNC recorder in Testcontainers' Selenium integration Required if exposing host ports to containers Used to check whether images can be pulled at startup, and always required (unless startup checks are disabled) Performs fail-safe cleanup of containers, and always required (unless Ryuk is disabled) Some companies disallow the usage of Docker Hub, but you can override *.image properties with your own images from your private registry to workaround that. Testcontainers uses public Docker images to perform different actions like startup checks, VNC recording and others. See Image Name Substitution for other strategies for substituting image names to pull from other registries. Overriding individual image names via configuration may be removed in 2021. This approach is discouraged and deprecated, but is documented for completeness. JAR files) - considered in alphabetical order of path to provide deterministic ordering.īefore running any containers Testcontainers will perform a set of startup checks to ensure that your environment is configured correctly. where the URL of the file on the classpath begins with file:), then If any keys conflict, the value will be taken on the basis of the first value found in:
within the src/test/resources directory) or within library dependencies that you may have.Īny such configuration files will have their contents merged. The classpath testcontainers.properties file may exist within the local codebase (e.g. Note that when using environment variables, configuration property names should be set in upperĬase with underscore separators, preceded by TESTCONTAINERS_ - e.g.
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