Examples with CommandSpec com.mesosphere.sdk.specification.CommandSpec used on opensource projects

Example 1 with CommandSpec

use of com.mesosphere.sdk.specification.CommandSpec in project dcos-commons by mesosphere.

the class CassandraRecoveryPlanOverrider method getNodeRecoveryPhase.

private Phase getNodeRecoveryPhase(Plan inputPlan, int index) {
    Phase inputPhase = inputPlan.getChildren().get(0);
    Step inputLaunchStep = inputPhase.getChildren().get(index);
    // Dig all the way down into the command, so we can append the replace_address option to it.
    PodInstance podInstance = inputLaunchStep.start().get().getPodInstance();
    PodSpec podSpec = podInstance.getPod();
    TaskSpec taskSpec = podSpec.getTasks().stream().filter(t -> t.getName().equals("server")).findFirst().get();
    CommandSpec command = taskSpec.getCommand().get();
    // Get IP address for the pre-existing node.
    Optional<Protos.TaskStatus> status = StateStoreUtils.getTaskStatusFromProperty(stateStore, TaskSpec.getInstanceName(podInstance, taskSpec));
    if (!status.isPresent()) {
        logger.error("No previously stored TaskStatus to pull IP address from in Cassandra recovery");
        return null;
    }
    String replaceIp = status.get().getContainerStatus().getNetworkInfos(0).getIpAddresses(0).getIpAddress();
    DefaultCommandSpec.Builder builder = DefaultCommandSpec.newBuilder(command);
    builder.value(String.format("%s -Dcassandra.replace_address=%s -Dcassandra.consistent.rangemovement=false%n", command.getValue().trim(), replaceIp));
    // Rebuild a new PodSpec with the modified command, and add it to the phase we return.
    TaskSpec newTaskSpec = DefaultTaskSpec.newBuilder(taskSpec).commandSpec(builder.build()).build();
    List<TaskSpec> tasks = podSpec.getTasks().stream().map(t -> {
        if (t.getName().equals(newTaskSpec.getName())) {
            return newTaskSpec;
        }
        return t;
    }).collect(Collectors.toList());
    PodSpec newPodSpec = DefaultPodSpec.newBuilder(podSpec).tasks(tasks).build();
    PodInstance newPodInstance = new DefaultPodInstance(newPodSpec, index);
    PodInstanceRequirement replacePodInstanceRequirement = PodInstanceRequirement.newBuilder(newPodInstance, inputLaunchStep.getPodInstanceRequirement().get().getTasksToLaunch()).recoveryType(RecoveryType.PERMANENT).build();
    Step replaceStep = new RecoveryStep(inputLaunchStep.getName(), replacePodInstanceRequirement, new UnconstrainedLaunchConstrainer(), stateStore);
    List<Step> steps = new ArrayList<>();
    steps.add(replaceStep);
    // Restart all other nodes if replacing a seed node to refresh IP resolution
    int replaceIndex = replaceStep.getPodInstanceRequirement().get().getPodInstance().getIndex();
    if (CassandraSeedUtils.isSeedNode(replaceIndex)) {
        logger.info("Scheduling restart of all nodes other than 'node-{}' to refresh seed node address.", replaceIndex);
        List<Step> restartSteps = inputPhase.getChildren().stream().filter(step -> step.getPodInstanceRequirement().get().getPodInstance().getIndex() != replaceIndex).map(step -> {
            PodInstanceRequirement restartPodInstanceRequirement = PodInstanceRequirement.newBuilder(step.getPodInstanceRequirement().get().getPodInstance(), step.getPodInstanceRequirement().get().getTasksToLaunch()).recoveryType(RecoveryType.TRANSIENT).build();
            return new RecoveryStep(step.getName(), restartPodInstanceRequirement, new UnconstrainedLaunchConstrainer(), stateStore);
        }).collect(Collectors.toList());
        steps.addAll(restartSteps);
    }
    return new DefaultPhase(RECOVERY_PHASE_NAME, steps, new SerialStrategy<>(), Collections.emptyList());
}