引用：https://connpass-tokyo.s3.amazonaws.com/thumbs/51/38/513841c07d179531da0b4504f295d8be.png:image=https://connpass-tokyo.s3.amazonaws.com/thumbs/51/38/513841c07d179531da0b4504f295d8be.png 2018/3/23に開催されたDockerの5周年記念のハンズ…