使用特定标签的 ECR 最新版本更新 ECR

Question

我有一个Lambda功能来升级我的ECS。它总是适用于最新的标签。

import boto3
import os

## Setting variables and importing libraries.
region = "us-east-1"
client = boto3.client('ecs', region_name=region)

CONTAINER_NAME = os.environ['NAME']
DOCKER_IMAGE = os.environ['IMAGE']
FAMILY_DEF = os.environ['TASK_DEF']
CLUSTER_NAME = os.environ['CLUSTER']
SERVICE_NAME = os.environ['SERVICE']

print ("IMAGE -> ", DOCKER_IMAGE)

def lambda_handler(event, context):
    print("----- START -----")

    response = client.register_task_definition(
        family=FAMILY_DEF,
        networkMode='awsvpc',
        containerDefinitions=[
            {
                'name': CONTAINER_NAME,
                'image': DOCKER_IMAGE,
                'memory': 300,
                'portMappings': [
                    {
                        'containerPort': 80,
                        'hostPort': 80,
                        'protocol': 'tcp'
                    },
                ],
                'essential': True,
            },
        ],
    )

    ## TaskDef for updating our service.
    response = client.update_service(
        cluster=CLUSTER_NAME,
        service=SERVICE_NAME,
        desiredCount=1,
        forceNewDeployment=True,
    ##   how many containers > n * 2 >
        deploymentConfiguration={
            'maximumPercent': 200,
            'minimumHealthyPercent': 100
        }
    )
    print("Updated service named {} cluster named {} with an updated task definition".format(SERVICE_NAME, CLUSTER_NAME))

如果DOCKER_IMAGE=至sdasdasd.dkr.ecr.us-east-1.amazonaws。com/cdtest：最新的它工作正常。

如果 DOCKER_IMAGE = sdasdasdasd.dkr.ecr.us-east-1.amazonaws.com/cdtest:myTag 它会给我最新的（标签）一个。

问题是:

如何让它用cdtest:myTag而不是/cdtest:latest更新集群？即使当DOCKER_IMAGE =....它总是用cdtest:latest image更新集群

Answer 1

import boto3
import os

## Setting variables and importing libraries.
region = "us-east-1"
client = boto3.client('ecs', region_name=region)

CONTAINER_NAME = os.environ['NAME']
DOCKER_IMAGE = os.environ['IMAGE']
FAMILY_DEF = os.environ['TASK_DEF']
CLUSTER_NAME = os.environ['CLUSTER']
SERVICE_NAME = os.environ['SERVICE']

print ("IMAGE -> ", DOCKER_IMAGE)

def lambda_handler(event, context):
    print("----- START -----")

    response = client.register_task_definition(
        family=FAMILY_DEF,
        networkMode='awsvpc',
        containerDefinitions=[
            {
                'name': CONTAINER_NAME,
                'image': DOCKER_IMAGE,
                'memory': 300,
                'portMappings': [
                    {
                        'containerPort': 80,
                        'hostPort': 80,
                        'protocol': 'tcp'
                    },
                ],
                'essential': True,
            },
        ],
    )

    ## TaskDef for updating our service.
    response = client.update_service(
        cluster=CLUSTER_NAME,
        service=SERVICE_NAME,
        desiredCount=1,
        taskDefinition=FAMILY_DEF,
        forceNewDeployment=True,
    ##   how many containers > n * 2 >
        deploymentConfiguration={
            'maximumPercent': 200,
            'minimumHealthyPercent': 100
        }
    )
    print("Updated service named {} cluster named {} with an updated task definition".format(SERVICE_NAME, CLUSTER_NAME))