任意のECSタスクコンテナにSSM接続するコマンド

ecs-shell

#!/usr/bin/env bash
set -euo pipefail

# ============================================================
# ECS Shell - fzfでインタラクティブにECSタスクコンテナへSSM接続
# ============================================================

command -v fzf >/dev/null 2>&1 || { echo "fzf が必要です: sudo apt install fzf"; exit 1; }
command -v aws >/dev/null 2>&1 || { echo "AWS CLI が必要です"; exit 1; }

pick() {
  local prompt="$1"
  fzf --prompt="$prompt " --height=~50% --reverse --exit-0
}

# ---------- 1. プロファイル ----------

AWS_PROFILE=$(aws configure list-profiles | pick "Profile >")
export AWS_PROFILE
echo "Profile: ${AWS_PROFILE}"

# ---------- 2. クラスタ ----------

cluster=$(
  aws ecs list-clusters --query 'clusterArns[]' --output text \
    | tr '\t' '\n' \
    | sed 's|.*/||' \
    | pick "Cluster >"
)
echo "Cluster: ${cluster}"

# ---------- 3. サービス ----------

service=$(
  aws ecs list-services --cluster "$cluster" --query 'serviceArns[]' --output text \
    | tr '\t' '\n' \
    | sed 's|.*/||' \
    | pick "Service >"
)
echo "Service: ${service}"

# ---------- 4. タスク ----------

task=$(
  aws ecs list-tasks --cluster "$cluster" --service-name "$service" --query 'taskArns[]' --output text \
    | tr '\t' '\n' \
    | sed 's|.*/||' \
    | pick "Task >"
)
echo "Task: ${task}"

# ---------- 5. コンテナ選択 & SSM接続 ----------

container=$(
  aws ecs describe-tasks --cluster "$cluster" --tasks "$task" \
    --query 'tasks[0].containers[].name' --output text \
    | tr '\t' '\n' \
    | pick "Container >"
)
echo "Container: ${container}"

echo ""
echo "=> ${cluster} / ${service} / ${task} / ${container}"
echo "SSM接続を開始します..."
echo ""

aws ecs execute-command \
  --cluster "$cluster" \
  --task "$task" \
  --container "$container" \
  --interactive \
  --command "/bin/sh"