Obtaining Component Information Based on the Component ID

Function

This API is used to obtain component information based on the component ID.

URI

GET /v3/{project_id}/cas/applications/{application_id}/components/{component_id}

**Table 1** Path parameter
Parameter	Mandatory	Type	Description
project_id	Yes	String	Tenant's project ID. See Obtaining a Project ID.
application_id	Yes	String	Application ID. See Obtaining All Applications.
component_id	Yes	String	Component ID. See Obtaining All Components of an Application.

Request

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
Content-Type	Yes	String	Message body type or format.
X-Auth-Token	Yes	String	API calling can be authenticated using a token or AK/SK. If you use a token, this parameter is mandatory and must be set to the token. For details about how to obtain a token, see Obtaining a User Token.

Response

**Table 3** Response parameters
Parameter	Type	Description
name	String	Application component name. The value contains 2 to 64 characters consisting of letters, digits, hyphens (-), and underscores (_). It starts with a letter and ends with a letter or digit. Letters are case insensitive.
labels	Array of objects	Label. For container-based deployment, you can query a workload by label. For VM-based deployment, you can configure a label of the corresponding microservice name to use graceful startup and shutdown. See Table 4.
runtime_stack	Object	Runtime. See Table 30. The value can be obtained from the response of the API for Querying a Runtime System Stack.
environment_id	String	Environment ID.
application_id	String	Application ID.
description	String	Description. The value can contain up to 128 characters.
source	Object	Source of the code or software package. See Table 31.
build	Object	Component build. See Table 32.
limit_cpu	Number	Maximum CPU limit. Unit: core.
limit_memory	Number	Maximum memory size. Unit: GiB.
request_cpu	Number	Applied CPU resources. Unit: core.
request_memory	Number	Applied memory. Unit: GiB.
version	String	Component version number. The value can contain up to 32 characters. It needs to meet the following rule: ^([0-9]+)(.[0-9]+){2,3}$
envs	Array of objects	Environment variable list. See Table 28.
replica	Integer	Number of instances.
storages	Array of objects	Storage. See Table 5.
deploy_strategy	Object	Component deployment. See Table 8.
command	Object	Startup command. See Table 11.
post_start	Object	Post-start processing. See Table 12.
pre_stop	Object	Pre-stop processing. See Table 12.
mesher	Object	Multi-language access service mesh. This parameter is mandatory when Node.js is selected for the technology stack and the CSE engine is bound. See Table 13.
timezone	String	Time zone where the component runs. Example: Asia/Shanghai.
jvm_opts	String	JVM parameter. Example: -Xms256m -Xmx1024m. If there are multiple parameters, separate them by spaces. If the parameter is left blank, the default value is used.
tomcat_opts	Object	Tomcat parameter. This parameter is valid when you use the Tomcat technology stack. See Table 14.
logs	Array of objects	Log collection. See Table 20.
custom_metric	Object	Custom metrics. See Table 21.
affinity	Object	Affinity. See Table 22.
anti_affinity	Object	Anti-affinity. See Table 22.
liveness_probe	Object	Component liveness probe. See Table 25.
readiness_probe	Object	Component service probe. See Table 25.
refer_resources	Array of objects	Associated resource. See Table 26.
status	Object	Component status. See Table 34.

**Table 4** labels parameters
Parameter	Type	Description
key	String	Label name.
value	String	Label value.

**Table 5** storages parameters
Parameter	Type	Description
type	String	Data storage type. HostPath: host path for local disk mounting. EmptyDir: temporary directory for local disk mounting. ConfigMap: configuration item for local disk mounting. Secret: secrets for local disk mounting. PersistentVolumeClaim: cloud storage mounting.
name	String	Name of the storage disk.
parameters	Object	For details about the parameters of each data storage type, see Table 6.
mounts	Array of objects	Mount path of data storage. See Table 7.

**Table 6** component_storage_parameters parameters
Parameter	Type	Description
path	String	Host path. This parameter is applicable to the HostPath storage type.
name	String	Name of a configuration item, secret, or PVC, which is applicable to ConfigMap, Secret, or PersistentVolumeClaim storage, respectively.
default_mode	Integer	Mounting permission. The value is in decimal format. Example: 384. This parameter is applicable to ConfigMap and secret storage.
medium	String	This parameter is applicable to the EmptyDir storage type. Example: memory.

**Table 7** mounts parameters
Parameter	Type	Description
path	String	Mount path.
sub_path	String	Subpath of the mount path.
read_only	Boolean	Read only or not.

**Table 8** deploy_strategy parameters
Parameter	Type	Description
type	String	Deployment type. OneBatchRelease: single-batch upgrade. RollingRelease: rolling deployment and upgrade. GrayRelease: dark launch upgrade.
rolling_release	Object	Rolling deployment parameter. See Table 9.
gray_release	Object	Dark launch upgrade. See Table 10.

**Table 9** rolling_release parameter
Parameter	Type	Description
batches	Integer	Deployment batches.

**Table 10** gray_release parameters
Parameter	Type	Description
type	String	Dark launch policy. weight: The upgrade is performed based on dark launch traffic.
first_batch_weight	Integer	Proportion of first-batch dark launch traffic.
first_batch_replica	Integer	Number of first-batch dark launch instances.
remaining_batch	Integer	Number of batches for remaining instance deployment. After the first batch is completed, the remaining instances will be deployed in specified batches. Example: If there are 5 instances remaining to be deployed in 3 batches, these 5 instances will be upgraded based on 2:2:1.

**Table 11** Command parameters
Parameter	Type	Description
command	Array of String	Command for controlling container running.
args	Array of String	Parameter for controlling container running. Example: -port=8080. If there are multiple parameters, separate them by line breaks.

**Table 12** component_lifecycle parameters
Parameter	Type	Description
type	String	Processing method. http command
scheme	String	HTTP request type, which can be HTTP or HTTPS. This parameter is valid only when type is set to http.
host	String	Custom IP address. If this parameter is left blank, the pod IP address is used. This parameter is valid only when type is set to http.
port	Integer	Port number. This parameter is valid only when type is set to http.
path	String	Request path. This parameter is valid only when type is set to http.
command	Array of String	Command list. This parameter is valid only when type is set to command.

**Table 13** mesher parameter
Parameter	Type	Description
port	Integer	Process listening port.

**Table 14** tomcat_opt parameter
Parameter	Type	Description
server_xml	String	Listening port in the server.xml file will take effect even if it has been configured in public network access. The custom Tomcat configuration may conflict with the existing port. Check whether the custom port is occupied.

**Table 15** host_aliases parameters
Parameter	Type	Description
ip	String	IP address.
hostname	Array of String	Host alias.

**Table 16** dns_config parameters
Parameter	Type	Description
nameservers	Array of String	IP address list of the DNS server of the pod.
searches	Array of String	List of DNS search domains used to search for host names in the pod.
options	Array of objects	An optional list of objects where each object may have a name property (required) and a value property (optional). This property is merged into the options generated from the specified DNS policy. Duplicate entries will be deleted. See Table 17.

**Table 17** options parameters
Parameter	Type	Description
name	String	Operation name.
value	String	Operation value.

**Table 18** security_context parameters
Parameter	Type	Description
run_as_user	Integer	User for running containers. Example: To run containers as user root, set the user ID to 0.
run_as_group	Integer	Owner group specified for running container processes.
capabilities	Object	Capability set. See Table 19.

**Table 19** capabilities parameters
Parameter	Type	Description
add	Array of String	Grant the Linux permission to the running user.
drop	Array of String	Remove the Linux permission of the running user.

**Table 20** logs parameters
Parameter	Type	Description
log_path	String	Container log path.
rotate	String	Interval for dumping logs.
host_path	String	Mounted host path.
host_extend_path	String	Host extension path. By extending the host path, you can distinguish mounting from different containers in the same host path. None: the extended path is not used. PodUID: extend the host path based on the pod ID. PodName: extend the host path based on the pod name. PodUID/ContainerName: extend the host path based on the pod ID and container name. PodName/ContainerName: extend the host path based on the pod name and container name.

**Table 21** custom_metric parameters
Parameter	Type	Description
path	String	Collection path. Example: /metrics.
port	Integer	Collection port. Example: 9090.
dimensions	String	Monitoring dimension. Example: cpu_usage or mem_usage.

**Table 22** component_affinity parameters
Parameter	Type	Description
az	Array of String	List of AZs.
node	Array of String	Node list.
component	Array of objects	Component list. See Table 23.

**Table 23** affinity_component parameters
Parameter	Type	Description
displayName	String	Workload name.
name	String	Component name.

**Table 24** match_expressions parameters
Parameter	Type	Description
key	String	Condition key.
value	String	Condition value.
operation	String	Operation.

**Table 25** component_probe parameters
Parameter	Type	Description
type	String	Type. Value: http, tcp, or command.
delay	Integer	Interval between the startup and detection.
timeout	Integer	Detection timeout interval.
scheme	String	Request type, which is HTTP or HTTPS. This parameter is valid only when type is set to http.
host	String	Custom IP address. If this parameter is left blank, the pod IP address is used. This parameter is valid only when type is set to http.
port	Integer	Port number. This parameter is valid only when type is set to http or tcp.
path	String	Request path. This parameter is valid only when type is set to http.
command	Array of String	Command list. This parameter is valid only when type is set to command.

**Table 26** refer_resources parameters
Parameter	Type	Description
id	String	Resource ID.
type	String	Resource type. vpc eip elb cce ecs as cse dcs rds
parameters	Object	Resource parameters. See Table 27.

**Table 27** refer_resource_parameter parameter
Parameter	Type	Description
namespace	String	Namespace.

**Table 28** env parameters
Parameter	Type	Description
name	String	Variable name.
value	String	Variable value.
value_from	Object	Variable reference. See Table 29.

**Table 29** value_from parameters
Parameter	Type	Description
reference_type	String	Reference type. configMapKey secretKey
name	String	Name of the configuration item or secret.
key	String	Key of the configuration item or secret.
optional	Boolean	Whether the key of the configuration item or secret is mandatory.

**Table 30** runtime_stack parameters
Parameter	Type	Description
name	String	Technology stack name.
type	String	Technology stack type. Value: Java, Tomcat, Nodejs, Php, Docker, or Python. When deploy_mode is set to virtualmachine, only Java, Tomcat, and Node.js are supported. When deploy_mode is set to container, all of the preceding types are supported.
version	String	Technology stack version.
deploy_mode	String	Deployment mode. container virtualmachine

**Table 31** source parameters
Parameter	Type	Description
kind	String	Component source kind. code package image
version	String	Version number.
url	String	Package address. This parameter is mandatory when kind is set to package or image.
storage	String	Storage mode. Value: swr (image), swr (software repository), codearts, or obs. This parameter is mandatory when kind is set to package or image.
auth	String	Authentication mode. Value: iam or none. Default value: iam.
repo_auth	String	Authorization name, which can be obtained from the authorization list.
repo_namespace	String	Namespace of the code repository.
repo_ref	String	Code branch or tag. Default value: master.
repo_type	String	Code repository type. Value: GitHub, BitBucket, or GitLab.
web_url	String	Code redirection URL. Example: https://github.com/example/demo.git.
repo_url	String	Code repository URL. Example: https://github.com/example/demo.git.

**Table 32** build parameter
Parameter	Type	Description
parameters	Map<String, Object>	This parameter is provided only when no ID is available during build creation. See Table 33.

**Table 33** parameters
Parameter	Type	Description
build_cmd	String	Compilation command. By default: When build.sh exists in the root directory, the command is ./build.sh. When build.sh does not exist in the root directory, the command varies depending on the OS. Example: Java and Tomcat: mvn clean package Nodejs: npm build
dockerfile_path	String	Address of the Docker file. By default, the Docker file is in the root directory (./).
artifact_namespace	String	Build archive organization. Default value: cas_{project_id}.
cluster_id	String	ID of the cluster to be built.
node_label_selector	Map<String, String>	key: key of the tag. value: value of the tag.
environment_id	String	Environment ID.

**Table 34** status parameters
Parameter	Type	Description
component_status	String	Component status. INITIALIZING UPGRADING FAILED RUNNING DOWN DELETING DELETED RESERVED STARTING STOPPING STOPPED RESTARTING PENDING UNKNOWN PARTIALLY_FAILED
available_replica	Integer	Available instances.
replica	Integer	Total instances.
fail_detail	String	Failure cause. cluster_deleted cluster_unavailable cluster_inaccessible namespace_deleted namespace_unavailable namespace_inaccessible resource_deleted create_failed delete_failed
last_job_id	String	ID of the last executed task.
create_time	Integer	Creation time.
update_time	Integer	Update time.
creator	String	Creator.
artifact	Object	Artifact information. See Table 35.

**Table 35** artifact parameters
Parameter	Type	Description
type	String	Component source type. VM-based deployment supports package. Container-based deployment supports package and image.
url	String	Software package or image address.

Example Request

None

Example Response

{
    "name": "test-component",
    "description": "",
    "labels": [],
    "runtime_stack": {

        "type": "Java",
        "name": "OpenJDK8",
        "deploy_mode": "virtualmachine",
        "version": "1.1.1"
    },
    "id": "b8702b0f-94d3-4822-98a1-56815632a0a0",
    "source": {
        "kind": "package",
        "url": "obs://bucket0001/weather-1.0.0.jar",
        "storage": "obs"
    },
    "environment_id": "4d084044-0b80-4641-963c-b9c9f4092a4f",
    "application_id": "fc092465-a5fb-4a52-bc65-b735f18366d8",
    "replica": 1,
    "version": "2023.0323.15181",
    "envs": [],
     "tomcat_opts": {
        "server_xml": "",
        "http_port": 0,
        "context_path": null
    },
    "refer_resources": [
        {
            "id": "Default",
            "type": "ecs",
            "parameters": {
                "hosts": [
                    "67835bb3-1235-4cc9-be71-becbb2b4ca0d"
                ]
            }
        }
    ],
    "status": {
        "component_status": "RUNNING",
        "available_replica": 1,
        "replica": 1,
        "fail_detail": null,
        "last_job_id": "JOB1c8e20ec-1b30-4ee4-9a36-35a18b5e8b7e",
        "creator": null,
        "create_time": 1679556221933,
        "update_time": 1679579448500,
    },
    "workload_kind": "deployment"
}