Examples with Kernel com.aws.greengrass.lifecyclemanager.Kernel used on opensource projects

Example 11 with Kernel

use of com.aws.greengrass.lifecyclemanager.Kernel in project aws-greengrass-nucleus by aws-greengrass.

the class GenericExternalServiceIntegTest method beforeEach.

@BeforeEach
void beforeEach() {
    kernel = new Kernel();
    NoOpPathOwnershipHandler.register(kernel);
}

Example 12 with Kernel

use of com.aws.greengrass.lifecyclemanager.Kernel in project aws-greengrass-nucleus by aws-greengrass.

the class KernelRestartTest method GIVEN_kernel_shuts_down_WHEN_kernel_restarts_with_a_new_config_THEN_it_should_start_with_the_new_config.

@Test
void GIVEN_kernel_shuts_down_WHEN_kernel_restarts_with_a_new_config_THEN_it_should_start_with_the_new_config() throws Exception {
    // GIVEN
    kernel = new Kernel();
    ConfigPlatformResolver.initKernelWithMultiPlatformConfig(kernel, this.getClass().getResource("kernel_restart_initial_config.yaml"));
    kernel.launch();
    assertThat(kernel.getMain()::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_1")::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_2")::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_2").getConfig().find("setenv", "key1").getOnce(), is(equalTo("value1")));
    kernel.shutdown();
    // WHEN
    // start Nucleus with parseArgs input so previous config tlog will be ignored.
    kernel = new Kernel();
    kernel.parseArgs("-i", this.getClass().getResource("kernel_restart_new_config.yaml").toString());
    kernel.launch();
    // THEN
    assertThat(kernel.getMain()::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    // service 3 is added
    assertThat(kernel.locate("service_3")::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    // service 2's setenv is updated
    assertThat(kernel.locate("service_2")::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_2").getConfig().find("setenv", "key1").getOnce(), is(equalTo("new_value1")));
    // service 1 is removed
    assertThrows(ServiceLoadException.class, () -> kernel.locate("service_1"), "actual kernel config: " + kernel.getConfig().toPOJO());
}

Example 13 with Kernel

use of com.aws.greengrass.lifecyclemanager.Kernel in project aws-greengrass-nucleus by aws-greengrass.

the class KernelRestartTest method GIVEN_kernel_shuts_down_WHEN_kernel_restarts_with_same_root_dir_THEN_it_should_get_back_to_prev_state.

@Test
void GIVEN_kernel_shuts_down_WHEN_kernel_restarts_with_same_root_dir_THEN_it_should_get_back_to_prev_state() throws Exception {
    // GIVEN
    kernel = new Kernel();
    ConfigPlatformResolver.initKernelWithMultiPlatformConfig(kernel, this.getClass().getResource("kernel_restart_initial_config.yaml"));
    kernel.launch();
    assertThat(kernel.getMain()::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_1")::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_2")::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_2").getConfig().find("setenv", "key1").getOnce(), is(equalTo("value1")));
    kernel.shutdown();
    // WHEN
    kernel = new Kernel();
    kernel.parseArgs().launch();
    // THEN
    assertThat(kernel.getMain()::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_1")::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_2")::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    assertThat(kernel.locate("service_2").getConfig().find("setenv", "key1").getOnce(), is(equalTo("value1")));
}

Example 14 with Kernel

use of com.aws.greengrass.lifecyclemanager.Kernel in project aws-greengrass-nucleus by aws-greengrass.

the class KernelRestartTest method GIVEN_kernel_launch_cleanly_and_shutdown_WHEN_kernel_restarts_with_same_root_dir_THEN_it_is_successful.

@Test
void GIVEN_kernel_launch_cleanly_and_shutdown_WHEN_kernel_restarts_with_same_root_dir_THEN_it_is_successful() {
    // note that this test is mainly to verify system plugins restart fine with tlog
    // GIVEN
    kernel = new Kernel();
    kernel.parseArgs();
    kernel.launch();
    assertThat(kernel.getMain()::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
    kernel.shutdown();
    // WHEN
    kernel = new Kernel();
    kernel.parseArgs().launch();
    // THEN
    assertThat(kernel.getMain()::getState, eventuallyEval(is(State.FINISHED), TIMEOUT));
}

Example 15 with Kernel

use of com.aws.greengrass.lifecyclemanager.Kernel in project aws-greengrass-nucleus by aws-greengrass.

the class KernelShutdownTest method beforeEach.

@BeforeEach
void beforeEach() throws Exception {
    kernel = new Kernel();
    ConfigPlatformResolver.initKernelWithMultiPlatformConfig(kernel, getClass().getResource("long_running_services.yaml"));
    kernel.launch();
}