aws_ecs_exec.sh

#!/bin/bash
# 
# Access Docker containers running on ECS/Fargate using SSH.
#
# You'll need to install the Session Manager plugin for the `aws` command for this to 
# work properly. On macOS: `brew install session-manager-plugin`.
#
# References:
# * https://gist.github.com/sjednac/c877e8e8dc09d6e2279209dfc7d9d4f8 (source code)
# * https://aws.amazon.com/blogs/containers/new-using-amazon-ecs-exec-access-your-containers-fargate-ec2/ 
#

COMMAND=${@:-/bin/sh}

if [ -z "$ECS_FAMILY" ]; then
    echo "Please select an ECS task family..."
    ECS_FAMILIES=`aws ecs list-task-definition-families --status ACTIVE --output text --query families`
    if [ -z "$ECS_FAMILIES" ]; then
        echo "No ECS task families found."
        exit 1
    fi
    
    select ITEM in $ECS_FAMILIES
    do
        if [ "$ITEM" != "" ]; then
            ECS_FAMILY=$ITEM
            break
        fi
    done
fi

echo "ECS family: $ECS_FAMILY"

if [ -z "$ECS_CLUSTER" ]; then
    echo "Please select an ECS cluster..."
    ECS_CLUSTER_ARNS=`aws ecs list-clusters --output text --query clusterArns`
    if [ -z "$ECS_CLUSTER_ARNS" ]; then
        echo "No ECS clusters found."
        exit 1
    fi
    
    select ITEM in $ECS_CLUSTER_ARNS
    do
        if [ "$ITEM" != "" ]; then
            ECS_CLUSTER=$ITEM
            break
        fi
    done
fi

echo "ECS cluster: $ECS_CLUSTER"

if [ -z "$ECS_TASK" ]; then
    echo "Please select an ECS task..."
    ECS_TASK_ARNS=`aws ecs list-tasks --cluster $ECS_CLUSTER --family $ECS_FAMILY --output text --query taskArns`
    if [ -z "$ECS_TASK_ARNS" ]; then
        echo "No ECS tasks found."
        exit 1
    fi
    
    select ITEM in $ECS_TASK_ARNS
    do
        if [ "$ITEM" != "" ]; then
            ECS_TASK=$ITEM
            break
        fi
    done
fi

echo "ECS task: $ECS_TASK"

if [ -z "$CONTAINER" ]; then
    echo "Please select a Docker container.."
    CONTAINERS=`aws ecs describe-tasks --tasks $ECS_TASK --cluster $ECS_CLUSTER --query "tasks[*].containers[*].name" --output text`
    if [ -z "$CONTAINERS" ]; then
        echo "No containers found."
        exit 1
    fi
    
   select ITEM in $CONTAINERS
    do
        if [ "$ITEM" != "" ]; then
            CONTAINER=$ITEM
            break
        fi
    done
fi

echo "Docker container: $CONTAINER"

aws ecs execute-command \
    --region $AWS_REGION \
    --profile $AWS_PROFILE \
    --cluster $ECS_CLUSTER \
    --task $ECS_TASK \
    --container $CONTAINER \
    --command "$COMMAND" \
    --interactive

demo.sh

#!/bin/bash
# 
# Sample script for a specific project/use-case.
#
export AWS_PROFILE=myproject
export AWS_REGION=eu-central-1

export ECS_FAMILY=myapp
export ECS_CLUSTER=mycluster
# Ask for this one each time the script is run
#export ECS_TASK=mytask
export CONTAINER=nginx

COMMAND=${@:-/bin/sh}

./aws_ecs_exec.sh $COMMAND

license

MIT No Attribution

Copyright 2024 Szymon Jednac

Permission is hereby granted, free of charge, to any person obtaining a copy of this
software and associated documentation files (the "Software"), to deal in the Software
without restriction, including without limitation the rights to use, copy, modify,
merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.