ssm-start-session

#!/usr/bin/env bash

if [ -n "$1" ]; then
  cat <<EOS
[NAME] $(basename $0) -- A Tool To Start Session With AWS Sessios Manager

[SYNOPSIS]

    $(basename $0)

[NOTE]

    - 'session-manager-plugin' has to be installed (See. https://docs.aws.amazon.com/systems-manager/latest/userguide/session-manager-working-with-install-plugin.html).

EOS

  exit 1
fi

set -eu

INSTANCE_ID="$(
    aws ec2 describe-instances \
        | jq -cr '.Reservations[].Instances[]
                    | select(.State.Name == "running")
                    | .InstanceId + " (" +
                    ( [.Tags[] | .Key + ":" + .Value]
                        | sort
                        | join(", ")) + ")"' \
        | peco \
        | cut -d' ' -f1
)"
if [ -z "$INSTANCE_ID" ]; then
  echo "$(date +'%Y-%m-%d %H:%M:%S %z') [ERROR] Unable to fetch any instance."
  exit 1
fi

exec aws ssm start-session --target $INSTANCE_ID