Add ecs-local script

Author: quangnhut123

.gitignore

@@ -1 +1,2 @@
 test*
+*.list

ecs-local.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+
+set -e
+
+usage() {
+    echo "Usage: $0 -c <cluster_name> -s <service_name> [-o <override_command>]"
+    echo " <cluster_name> must be provided."
+    echo " <service_name> must be provided."
+    echo " <override_command> is optional and can be used to overwrite the default command."
+    exit 1
+}
+
+get_task_definition() {
+    aws ecs describe-services --cluster "$1" --service "$2" --query "services[0].taskDefinition" --output text
+}
+
+get_ecr_image() {
+    aws ecs describe-task-definition --task-definition "$1" | jq -r '.taskDefinition.containerDefinitions[0].image'
+}
+
+get_docker_command() {
+    aws ecs describe-task-definition --task-definition "$1" | jq -r '.taskDefinition.containerDefinitions[0].command | join(" ")'
+}
+
+fetch_env_vars() {
+    local task_definition="$1"
+    rm -rf ./env.list
+    touch ./env.list
+
+    # Fetch secret environment variables
+    aws ecs describe-task-definition --task-definition "$task_definition" | jq -r '.taskDefinition.containerDefinitions[0].secrets[] | "\(.name),\(.valueFrom)"' | while IFS=',' read -r name valueFrom; do
+        local env_value
+        env_value=$(aws ssm get-parameter --name "$valueFrom" --with-decryption | jq -r '.Parameter.Value')
+
+        # Convert multi-line keys into single-line format
+        if [[ $env_value =~ "PRIVATE KEY" || $env_value =~ "PUBLIC KEY" ]]; then
+            env_value=$(echo "$env_value" | tr -d '\n')
+        fi
+
+        echo "$name=$env_value" >> ./env.list
+    done
+
+    # Fetch application environment variables
+    aws ecs describe-task-definition --task-definition "$task_definition" | jq -r '.taskDefinition.containerDefinitions[0].environment[] | "\(.name),\(.value)"' | while IFS=',' read -r name value; do
+        echo "$name=$value" >> ./env.list
+    done
+}
+
+run_docker_container() {
+    local ecr_repo="$1"
+    local ecr_image="$2"
+    local docker_command="$3"
+
+    aws ecr get-login-password --region ap-northeast-1 | docker login --username AWS --password-stdin "$ecr_repo"
+    docker run -d --env-file ./env.list "$ecr_image" sh -c "$docker_command"
+}
+
+# Parse arguments
+while getopts c:s:o: flag; do
+    case "${flag}" in
+        c) cluster_name=${OPTARG} ;;
+        s) service_name=${OPTARG} ;;
+        o) override_command=${OPTARG} ;;
+        *) usage ;;
+    esac
+done
+
+if [ -z "$cluster_name" ] || [ -z "$service_name" ]; then
+    usage
+fi
+
+# Main script logic
+TASK_LATEST=$(get_task_definition "$cluster_name" "$service_name")
+ECR_IMAGE=$(get_ecr_image "$TASK_LATEST")
+ECR_REPO=$(echo "$ECR_IMAGE" | awk -F\/ '{print $1}')
+docker_command=$(get_docker_command "$TASK_LATEST")
+
+if [ -n "$override_command" ]; then
+    docker_command="$override_command"
+fi
+
+fetch_env_vars "$TASK_LATEST"
+run_docker_container "$ECR_REPO" "$ECR_IMAGE" "$docker_command"