AWSが全然わからなすぎるWebエンジニアです。前職ではAWSを触る権限がある人たちが限られていたので仕事でAWSを触ることがほとんどないまま転職し、バリバリAWSを使わないといけない環境になりましたが、いまだに全然わかりません...
今回は自分のような人のために、とりあえず動かしてみて、動いたぞー！という感覚を得てなんとなく理解するための記事です。
Regionを確認する
アジアパシフィック（東京）になっていることを確認。
キーペアを作成する
まずEC2にアクセスするためのキーペアを作成します。
EC2のメニューにある、キーペアをクリック。
ー「名前」だけ変更し、キーペアを作成、をクリック。
すると、自動的にPCにキーペアファイルがダウンロードされます。
EC2を起動する
メニューから「インスタンス」を選び、「インスタンスを起動する」ボタンを押下。
ー「名前」を変更。
OSやマシンイメージ、インスタンスタイプはそのままデフォルトを選択したままにする。
「キーペア」を先ほど作成したものを選択。
「ネットワーク設定」で「インターネットからのHTTPトラフィックを許可」にチェック。
これで外部からインターネット経由でアクセスできるようにします。
ストレージ設定はいじらず、「インスタンスを起動」を押下。
これでインスタンスが「実行中」になるのを待ちます。
Cloudshellでログインする
自分のPCのTerminalなどでも良いです。
Cloudshellの場合は、Cloudshellをメニューからクリックします。
アクションメニューから、ファイルをアップロードを選択。
先ほどダウンロードしたキーペアファイルをアップロードします。
アップロードできたらファイル権限を変更しておきます。
「chmod 400 xx.pem」
sshでEC2にアクセスします。
「ssh -i xx.pem(pemファイル名) ec2-user@xx(ここはEC2のパブリックIPアドレス)」
パブリックIPv4アドレスは起動したインスタンス名をクリックしたときに見れる、詳細ページに記載してあります。
最初はフィンガープリントなどを聞かれますが、yesで進みます。
~ $ ssh -i first_ec2.pem ec2-user@35.72.179.3
The authenticity of host '35.72.179.3 (35.72.179.3)' can't be established.
ED25519 key fingerprint is SHA256:u4tHlXLGR6+FvtRCHzJ07sFO+5kMYTGNS2Zv5cpQkCg.
This key is not known by any other names
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '35.72.179.3' (ED25519) to the list of known hosts.
, #_
~\_ ####_ Amazon Linux 2023
~~ \_#####\
~~ \###|
~~ \#/ ___ https://aws.amazon.com/linux/amazon-linux-2023
~~ V~' '->
~~~ /
~~._. _/
_/ _/
_/m/'
その後、以下のコマンドを打っていきます。
[ec2-user@ip-172-31-25-244 ~]$ sudo su -
[root@ip-172-31-25-244 ~]# yum install -y docker
Amazon Linux 2023 Kernel Livepatch repository 259 kB/s | 31 kB 00:00
Last metadata expiration check: 0:00:01 ago on Wed Apr 8 01:16:52 2026.
Dependencies resolved.
====================================================================================================================================================================================================
Package Architecture Version Repository Size
====================================================================================================================================================================================================
Installing:
docker x86_64 25.0.14-1.amzn2023.0.2 amazonlinux 46 M
Installing dependencies:
container-selinux noarch 4:2.245.0-1.amzn2023 amazonlinux 58 k
containerd x86_64 2.2.1-1.amzn2023.0.1 amazonlinux 24 M
iptables-libs x86_64 1.8.8-3.amzn2023.0.2 amazonlinux 401 k
iptables-nft x86_64 1.8.8-3.amzn2023.0.2 amazonlinux 183 k
libcgroup x86_64 3.0-1.amzn2023.0.1 amazonlinux 75 k
libnetfilter_conntrack x86_64 1.0.8-2.amzn2023.0.2 amazonlinux 58 k
libnfnetlink x86_64 1.0.1-19.amzn2023.0.2 amazonlinux 30 k
libnftnl x86_64 1.2.2-2.amzn2023.0.2 amazonlinux 84 k
pigz x86_64 2.5-1.amzn2023.0.3 amazonlinux 83 k
runc x86_64 1.3.4-1.amzn2023.0.2 amazonlinux 3.9 M
Transaction Summary
====================================================================================================================================================================================================
Install 11 Packages
Total download size: 75 M
Installed size: 282 M
Downloading Packages:
(1/11): container-selinux-2.245.0-1.amzn2023.noarch.rpm 1.4 MB/s | 58 kB 00:00
(2/11): iptables-libs-1.8.8-3.amzn2023.0.2.x86_64.rpm 11 MB/s | 401 kB 00:00
(3/11): iptables-nft-1.8.8-3.amzn2023.0.2.x86_64.rpm 4.1 MB/s | 183 kB 00:00
(4/11): libcgroup-3.0-1.amzn2023.0.1.x86_64.rpm 2.2 MB/s | 75 kB 00:00
(5/11): libnetfilter_conntrack-1.0.8-2.amzn2023.0.2.x86_64.rpm 2.2 MB/s | 58 kB 00:00
(6/11): libnfnetlink-1.0.1-19.amzn2023.0.2.x86_64.rpm 1.0 MB/s | 30 kB 00:00
(7/11): libnftnl-1.2.2-2.amzn2023.0.2.x86_64.rpm 3.0 MB/s | 84 kB 00:00
(8/11): pigz-2.5-1.amzn2023.0.3.x86_64.rpm 2.5 MB/s | 83 kB 00:00
(9/11): containerd-2.2.1-1.amzn2023.0.1.x86_64.rpm 64 MB/s | 24 MB 00:00
(10/11): runc-1.3.4-1.amzn2023.0.2.x86_64.rpm 29 MB/s | 3.9 MB 00:00
(11/11): docker-25.0.14-1.amzn2023.0.2.x86_64.rpm 68 MB/s | 46 MB 00:00
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 103 MB/s | 75 MB 00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : runc-1.3.4-1.amzn2023.0.2.x86_64 1/11
Installing : containerd-2.2.1-1.amzn2023.0.1.x86_64 2/11
Running scriptlet: containerd-2.2.1-1.amzn2023.0.1.x86_64 2/11
Installing : pigz-2.5-1.amzn2023.0.3.x86_64 3/11
Installing : libnftnl-1.2.2-2.amzn2023.0.2.x86_64 4/11
Installing : libnfnetlink-1.0.1-19.amzn2023.0.2.x86_64 5/11
Installing : libnetfilter_conntrack-1.0.8-2.amzn2023.0.2.x86_64 6/11
Installing : iptables-libs-1.8.8-3.amzn2023.0.2.x86_64 7/11
Installing : iptables-nft-1.8.8-3.amzn2023.0.2.x86_64 8/11
Running scriptlet: iptables-nft-1.8.8-3.amzn2023.0.2.x86_64 8/11
Installing : libcgroup-3.0-1.amzn2023.0.1.x86_64 9/11
Running scriptlet: container-selinux-4:2.245.0-1.amzn2023.noarch 10/11
Installing : container-selinux-4:2.245.0-1.amzn2023.noarch 10/11
Running scriptlet: container-selinux-4:2.245.0-1.amzn2023.noarch 10/11
Running scriptlet: docker-25.0.14-1.amzn2023.0.2.x86_64 11/11
Installing : docker-25.0.14-1.amzn2023.0.2.x86_64 11/11
Running scriptlet: docker-25.0.14-1.amzn2023.0.2.x86_64 11/11
Created symlink /etc/systemd/system/sockets.target.wants/docker.socket → /usr/lib/systemd/system/docker.socket.
Running scriptlet: container-selinux-4:2.245.0-1.amzn2023.noarch 11/11
Running scriptlet: docker-25.0.14-1.amzn2023.0.2.x86_64 11/11
Verifying : container-selinux-4:2.245.0-1.amzn2023.noarch 1/11
Verifying : containerd-2.2.1-1.amzn2023.0.1.x86_64 2/11
Verifying : docker-25.0.14-1.amzn2023.0.2.x86_64 3/11
Verifying : iptables-libs-1.8.8-3.amzn2023.0.2.x86_64 4/11
Verifying : iptables-nft-1.8.8-3.amzn2023.0.2.x86_64 5/11
Verifying : libcgroup-3.0-1.amzn2023.0.1.x86_64 6/11
Verifying : libnetfilter_conntrack-1.0.8-2.amzn2023.0.2.x86_64 7/11
Verifying : libnfnetlink-1.0.1-19.amzn2023.0.2.x86_64 8/11
Verifying : libnftnl-1.2.2-2.amzn2023.0.2.x86_64 9/11
Verifying : pigz-2.5-1.amzn2023.0.3.x86_64 10/11
Verifying : runc-1.3.4-1.amzn2023.0.2.x86_64 11/11
====================================================================================================================================================================================================
WARNING:
A newer release of "Amazon Linux" is available.
Available Versions:
Version 2023.11.20260406:
Run the following command to upgrade to 2023.11.20260406:
dnf upgrade --releasever=2023.11.20260406
Release notes:
https://docs.aws.amazon.com/linux/al2023/release-notes/relnotes-2023.11.20260406.html
====================================================================================================================================================================================================
Installed:
container-selinux-4:2.245.0-1.amzn2023.noarch containerd-2.2.1-1.amzn2023.0.1.x86_64 docker-25.0.14-1.amzn2023.0.2.x86_64 iptables-libs-1.8.8-3.amzn2023.0.2.x86_64
iptables-nft-1.8.8-3.amzn2023.0.2.x86_64 libcgroup-3.0-1.amzn2023.0.1.x86_64 libnetfilter_conntrack-1.0.8-2.amzn2023.0.2.x86_64 libnfnetlink-1.0.1-19.amzn2023.0.2.x86_64
libnftnl-1.2.2-2.amzn2023.0.2.x86_64 pigz-2.5-1.amzn2023.0.3.x86_64 runc-1.3.4-1.amzn2023.0.2.x86_64
Complete!
[root@ip-172-31-25-244 ~]# sytemctl enable docker
-bash: sytemctl: command not found
[root@ip-172-31-25-244 ~]# systemctl enable docker
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.
[root@ip-172-31-25-244 ~]# systemctl start docker
[root@ip-172-31-25-244 ~]# systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; preset: disabled)
Active: active (running) since Wed 2026-04-08 01:20:25 UTC; 8s ago
TriggeredBy: ● docker.socket
Docs: https://docs.docker.com
Process: 27204 ExecStartPre=/bin/mkdir -p /run/docker (code=exited, status=0/SUCCESS)
Process: 27205 ExecStartPre=/usr/libexec/docker/docker-setup-runtimes.sh (code=exited, status=0/SUCCESS)
Main PID: 27206 (dockerd)
Tasks: 9
Memory: 30.1M
CPU: 374ms
CGroup: /system.slice/docker.service
└─27206 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock --default-ulimit nofile=32768:65536
Apr 08 01:20:24 ip-172-31-25-244.ap-northeast-1.compute.internal systemd[1]: Starting docker.service - Docker Application Container Engine...
Apr 08 01:20:25 ip-172-31-25-244.ap-northeast-1.compute.internal dockerd[27206]: time="2026-04-08T01:20:25.025774168Z" level=info msg="Starting up"
Apr 08 01:20:25 ip-172-31-25-244.ap-northeast-1.compute.internal dockerd[27206]: time="2026-04-08T01:20:25.090980611Z" level=info msg="Loading containers: start."
Apr 08 01:20:25 ip-172-31-25-244.ap-northeast-1.compute.internal dockerd[27206]: time="2026-04-08T01:20:25.692206619Z" level=info msg="Loading containers: done."
Apr 08 01:20:25 ip-172-31-25-244.ap-northeast-1.compute.internal dockerd[27206]: time="2026-04-08T01:20:25.714232734Z" level=info msg="Docker daemon" commit=d334795 containerd-snapshotter=false s>
Apr 08 01:20:25 ip-172-31-25-244.ap-northeast-1.compute.internal dockerd[27206]: time="2026-04-08T01:20:25.714414727Z" level=info msg="Daemon has completed initialization"
Apr 08 01:20:25 ip-172-31-25-244.ap-northeast-1.compute.internal dockerd[27206]: time="2026-04-08T01:20:25.757348253Z" level=info msg="API listen on /run/docker.sock"
Apr 08 01:20:25 ip-172-31-25-244.ap-northeast-1.compute.internal systemd[1]: Started docker.service - Docker Application Container Engine.
[root@ip-172-31-25-244 ~]# docker run hello-worold
Unable to find image 'hello-worold:latest' locally
docker: Error response from daemon: pull access denied for hello-worold, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.
See 'docker run --help'.
[root@ip-172-31-25-244 ~]# ^C
[root@ip-172-31-25-244 ~]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
4f55086f7dd0: Pull complete
Digest: sha256:452a468a4bf985040037cb6d5392410206e47db9bf5b7278d281f94d1c2d0931
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
[root@ip-172-31-25-244 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
hello-world latest e2ac70e7319a 2 weeks ago 10.1kB
[root@ip-172-31-25-244 ~]# docker pull amazonlinux:2
2: Pulling from library/amazonlinux
5e0c2ef2594e: Pull complete
Digest: sha256:dc69cc77521b5f921c5610e200bec1ef8141709ba33bf5c427ab6e85a8674ecb
Status: Downloaded newer image for amazonlinux:2
docker.io/library/amazonlinux:2
[root@ip-172-31-25-244 ~]# docker run -p 80:80 -it -name test01 amazonlinux:2 /bin/bash
unknown shorthand flag: 'n' in -name
See 'docker run --help'.
[root@ip-172-31-25-244 ~]# yum install -y httpd
Last metadata expiration check: 0:05:44 ago on Wed Apr 8 01:16:52 2026.
Dependencies resolved.
====================================================================================================================================================================================================
Package Architecture Version Repository Size
====================================================================================================================================================================================================
Installing:
httpd x86_64 2.4.66-1.amzn2023.0.1 amazonlinux 47 k
Installing dependencies:
apr x86_64 1.7.5-1.amzn2023.0.4 amazonlinux 129 k
apr-util x86_64 1.6.3-1.amzn2023.0.2 amazonlinux 97 k
apr-util-lmdb x86_64 1.6.3-1.amzn2023.0.2 amazonlinux 13 k
generic-logos-httpd noarch 18.0.0-12.amzn2023.0.3 amazonlinux 19 k
httpd-core x86_64 2.4.66-1.amzn2023.0.1 amazonlinux 1.4 M
httpd-filesystem noarch 2.4.66-1.amzn2023.0.1 amazonlinux 13 k
httpd-tools x86_64 2.4.66-1.amzn2023.0.1 amazonlinux 81 k
libbrotli x86_64 1.0.9-4.amzn2023.0.2 amazonlinux 315 k
mailcap noarch 2.1.49-3.amzn2023.0.3 amazonlinux 33 k
Installing weak dependencies:
apr-util-openssl x86_64 1.6.3-1.amzn2023.0.2 amazonlinux 15 k
mod_http2 x86_64 2.0.27-1.amzn2023.0.3 amazonlinux 166 k
mod_lua x86_64 2.4.66-1.amzn2023.0.1 amazonlinux 60 k
Transaction Summary
====================================================================================================================================================================================================
Install 13 Packages
Total download size: 2.4 M
Installed size: 6.9 M
Downloading Packages:
(1/13): apr-util-lmdb-1.6.3-1.amzn2023.0.2.x86_64.rpm 374 kB/s | 13 kB 00:00
(2/13): apr-1.7.5-1.amzn2023.0.4.x86_64.rpm 3.2 MB/s | 129 kB 00:00
(3/13): apr-util-1.6.3-1.amzn2023.0.2.x86_64.rpm 1.8 MB/s | 97 kB 00:00
(4/13): apr-util-openssl-1.6.3-1.amzn2023.0.2.x86_64.rpm 608 kB/s | 15 kB 00:00
(5/13): generic-logos-httpd-18.0.0-12.amzn2023.0.3.noarch.rpm 771 kB/s | 19 kB 00:00
(6/13): httpd-2.4.66-1.amzn2023.0.1.x86_64.rpm 1.6 MB/s | 47 kB 00:00
(7/13): httpd-filesystem-2.4.66-1.amzn2023.0.1.noarch.rpm 508 kB/s | 13 kB 00:00
(8/13): httpd-core-2.4.66-1.amzn2023.0.1.x86_64.rpm 30 MB/s | 1.4 MB 00:00
(9/13): httpd-tools-2.4.66-1.amzn2023.0.1.x86_64.rpm 2.5 MB/s | 81 kB 00:00
(10/13): libbrotli-1.0.9-4.amzn2023.0.2.x86_64.rpm 9.9 MB/s | 315 kB 00:00
(11/13): mailcap-2.1.49-3.amzn2023.0.3.noarch.rpm 1.3 MB/s | 33 kB 00:00
(12/13): mod_http2-2.0.27-1.amzn2023.0.3.x86_64.rpm 6.2 MB/s | 166 kB 00:00
(13/13): mod_lua-2.4.66-1.amzn2023.0.1.x86_64.rpm 2.3 MB/s | 60 kB 00:00
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 12 MB/s | 2.4 MB 00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : apr-1.7.5-1.amzn2023.0.4.x86_64 1/13
Installing : apr-util-lmdb-1.6.3-1.amzn2023.0.2.x86_64 2/13
Installing : apr-util-openssl-1.6.3-1.amzn2023.0.2.x86_64 3/13
Installing : apr-util-1.6.3-1.amzn2023.0.2.x86_64 4/13
Installing : mailcap-2.1.49-3.amzn2023.0.3.noarch 5/13
Installing : httpd-tools-2.4.66-1.amzn2023.0.1.x86_64 6/13
Installing : libbrotli-1.0.9-4.amzn2023.0.2.x86_64 7/13
Running scriptlet: httpd-filesystem-2.4.66-1.amzn2023.0.1.noarch 8/13
Installing : httpd-filesystem-2.4.66-1.amzn2023.0.1.noarch 8/13
Installing : httpd-core-2.4.66-1.amzn2023.0.1.x86_64 9/13
Installing : mod_http2-2.0.27-1.amzn2023.0.3.x86_64 10/13
Installing : mod_lua-2.4.66-1.amzn2023.0.1.x86_64 11/13
Installing : generic-logos-httpd-18.0.0-12.amzn2023.0.3.noarch 12/13
Installing : httpd-2.4.66-1.amzn2023.0.1.x86_64 13/13
Running scriptlet: httpd-2.4.66-1.amzn2023.0.1.x86_64 13/13
Verifying : apr-1.7.5-1.amzn2023.0.4.x86_64 1/13
Verifying : apr-util-1.6.3-1.amzn2023.0.2.x86_64 2/13
Verifying : apr-util-lmdb-1.6.3-1.amzn2023.0.2.x86_64 3/13
Verifying : apr-util-openssl-1.6.3-1.amzn2023.0.2.x86_64 4/13
Verifying : generic-logos-httpd-18.0.0-12.amzn2023.0.3.noarch 5/13
Verifying : httpd-2.4.66-1.amzn2023.0.1.x86_64 6/13
Verifying : httpd-core-2.4.66-1.amzn2023.0.1.x86_64 7/13
Verifying : httpd-filesystem-2.4.66-1.amzn2023.0.1.noarch 8/13
Verifying : httpd-tools-2.4.66-1.amzn2023.0.1.x86_64 9/13
Verifying : libbrotli-1.0.9-4.amzn2023.0.2.x86_64 10/13
Verifying : httpd-tools-2.4.66-1.amzn2023.0.1.x86_64 9/13
Verifying : libbrotli-1.0.9-4.amzn2023.0.2.x86_64 10/13
Verifying : mailcap-2.1.49-3.amzn2023.0.3.noarch 11/13
Verifying : mod_http2-2.0.27-1.amzn2023.0.3.x86_64 12/13
Verifying : mod_lua-2.4.66-1.amzn2023.0.1.x86_64 13/13
====================================================================================================================================================================================================
WARNING:
A newer release of "Amazon Linux" is available.
Available Versions:
Version 2023.11.20260406:
Run the following command to upgrade to 2023.11.20260406:
dnf upgrade --releasever=2023.11.20260406
Release notes:
https://docs.aws.amazon.com/linux/al2023/release-notes/relnotes-2023.11.20260406.html
====================================================================================================================================================================================================
Installed:
apr-1.7.5-1.amzn2023.0.4.x86_64 apr-util-1.6.3-1.amzn2023.0.2.x86_64 apr-util-lmdb-1.6.3-1.amzn2023.0.2.x86_64 apr-util-openssl-1.6.3-1.amzn2023.0.2.x86_64
generic-logos-httpd-18.0.0-12.amzn2023.0.3.noarch httpd-2.4.66-1.amzn2023.0.1.x86_64 httpd-core-2.4.66-1.amzn2023.0.1.x86_64 httpd-filesystem-2.4.66-1.amzn2023.0.1.noarch
httpd-tools-2.4.66-1.amzn2023.0.1.x86_64 libbrotli-1.0.9-4.amzn2023.0.2.x86_64 mailcap-2.1.49-3.amzn2023.0.3.noarch mod_http2-2.0.27-1.amzn2023.0.3.x86_64
mod_lua-2.4.66-1.amzn2023.0.1.x86_64
Complete!
[root@ip-172-31-25-244 ~]# /usr/sbin/httpd
そして、httpdを起動したところで、先ほど入力したEC2インスタンスのパブリックIPアドレスを自分のPCのブラウザに入れて、アクセスしてみます。
動きました！
このままだと、デフォルトのままなので、表示を変えてみます。
[root@ip-172-31-25-244 ~]# echo hello, world! > /var/www/html/index.html
[root@ip-172-31-25-244 ~]#
できました！
[root@ip-172-31-25-244 ~]# mkdir docker-test
[root@ip-172-31-25-244 ~]# cd docker-test
[root@ip-172-31-25-244 docker-test]# touch Dockerfile
[root@ip-172-31-25-244 docker-test]# vi Dockerfile
次に、docker-testというディレクトリを作って、そこにDockerfileを作ります。
そしたら、ファイルを開いて以下を貼り付けます。
FROM amazonlinux:2
RUN yum install -y httpd
COPY ./index.html /var/www/html/index.html
EXPOSE 80
CMD ["/usr/sbin/httpd","-D","FOREGROUND"]
Cloudshellで複数行貼り付けようとすると、このような注意ポップアップが出ますが気にせず進みます。
次に、index.htmlファイルを作成して、こちらも編集します。
[root@ip-172-31-25-244 docker-test]# touch index.html
[root@ip-172-31-25-244 docker-test]# vi index.html
内容は適当で良いです。
[root@ip-172-31-25-244 docker-test]# docker run -d -p 80:80 --name training2026 training2026-test
35443e271335246f167377b63a284df0d24fb780643484f73dd598900c6ae2d8
できました！！
次は、index.htmlを更新して、再度ビルドし直してみましょう。
とりあえず、Dockerを止めます。
[root@ip-172-31-25-244 docker-test]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
39274159382f training2026-test "/usr/sbin/httpd -D …" 37 seconds ago Up 36 seconds 0.0.0.0:80->80/tcp, :::80->80/tcp training2026
[root@ip-172-31-25-244 docker-test]# docker stop 39274159382f
39274159382f
そして、index.htmlを更新しておきます。
[root@ip-172-31-25-244 docker-test]# docker rm training2026
training2026
[root@ip-172-31-25-244 docker-test]# docker build -t training2026-test .
[+] Building 0.1s (8/8) FINISHED docker:default
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 238B 0.0s
=> [internal] load metadata for docker.io/library/amazonlinux:2 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [1/3] FROM docker.io/library/amazonlinux:2 0.0s
=> [internal] load build context 0.0s
=> => transferring context: 123B 0.0s
=> CACHED [2/3] RUN yum install -y httpd 0.0s
=> CACHED [3/3] COPY ./index.html /var/www/html/index.html 0.0s
=> exporting to image 0.0s
=> => exporting layers 0.0s
=> => writing image sha256:3b95eee49f742954625e4e2642a4252ce72d7d452f31842123f3f8f8c64631a2 0.0s
=> => naming to docker.io/library/training2026-test 0.0s
[root@ip-172-31-25-244 docker-test]# docker run -d -p 80:80 --name training2026 training2026-test
b3a452634d0e387508d8dd849b4145f62be7899f7215c0fb9adbaf471e9e4e54
更新内容が表示されました！