Method get_or_create

fendermint/testing/materializer/src/docker/node.rs:95–497

(
        root: impl AsRef<Path>,
        docker: Docker,
        dropper: DropChute,
        drop_policy: &DropPolicy,
        node_name: &NodeName,
        node_config: &NodeConfig<'_, DockerMateria

impl DockerNode {
    pub async fn get_or_create(
        root: impl AsRef<Path>,
        docker: Docker,
        dropper: DropChute,
        drop_policy: &DropPolicy,
        node_name: &NodeName,
        node_config: &NodeConfig<'_, DockerMaterials>,
        port_range: DockerPortRange,
    ) -> anyhow::Result<Self> {
        let fendermint_name = container_name(node_name, "fendermint");
        let cometbft_name = container_name(node_name, "cometbft");
        let ethapi_name = container_name(node_name, "ethapi");

        let fendermint = DockerContainer::get(
            docker.clone(),
            dropper.clone(),
            drop_policy,
            fendermint_name.clone(),
        )
        .await?;

        let cometbft = DockerContainer::get(
            docker.clone(),
            dropper.clone(),
            drop_policy,
            cometbft_name.clone(),
        )
        .await?;

        let ethapi = DockerContainer::get(
            docker.clone(),
            dropper.clone(),
            drop_policy,
            ethapi_name.clone(),
        )
        .await?;

        // Directory for the node's data volumes
        let node_dir = root.as_ref().join(node_name);
        fs::create_dir_all(&node_dir).context("failed to create node dir")?;

        // Get the current user ID to use with docker containers.
        let user = user_id(&node_dir)?;

        let make_runner = |image, volumes| {
            DockerRunner::new(
                docker.clone(),
                dropper.clone(),
                drop_policy.clone(),
                node_name.clone(),
                user,
                image,
                volumes,
                Some(node_config.network.network_name().to_string()),
            )
        };

        // Create a directory for keys