YMLib - other - Dockerfile

Dockerfile

2025/05/24

Dockerfileでイメージを作成します。

◆環境

OS	Windows 10 Home 22H2 64bit
Docker	27.4.0 build bde2b89

Dockerfileにrustの環境を作成するときに使用したコマンドを記載します。

Dockerfile

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2:
3:
4:
5:

6:
7:

FROM ubuntu:20.04

RUN apt update
RUN apt install -y curl
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs |

sh
RUN . "$HOME/.cargo/env"
RUN source "$HOME/.cargo/env"

Dockerfileのあるフォルダに移動しdocker buildを実行します。

> cd .\P304\src
> docker build -t my-rust:Dockerfile .
[+] Building 35.5s (7/9)

docker:desktop-linux
=> [internal] load build definition from Dockerfile

0.1s
=> => transferring dockerfile: 226B

0.0s
=> [internal] load metadata for docker.io/library/ubuntu:20.04

0.0s
=> [internal] load .dockerignore

0.0s
=> => transferring context: 2B

0.0s
=> [1/6] FROM docker.io/library/ubuntu:20.04@sha256:8e5c4f0285ecbb4e

ad070431d29b576a530d3166df73ec44affc1cd27555 1.6s
=> => resolve docker.io/library/ubuntu:20.04@sha256:8e5c4f0285ecbb4e

ad070431d29b576a530d3166df73ec44affc1cd27555 1.5s
=> [2/6] RUN apt update

18.9s
=> [3/6] RUN apt install -y curl

9.9s
=> ERROR [4/6] RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.r

ustup.rs | sh 4.8s
------
> [4/6] RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.r

s | sh:
0.826 info: downloading installer
4.733 error: Unable to run interactively. Run with -y to accept defau

lts, --help for additional options
------
Dockerfile:5
--------------------
   3 |     RUN apt update
   4 |     RUN apt install -y curl
   5 | >>> RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup

.rs | sh
6 | RUN . "$HOME/.cargo/env"
7 | RUN source "$HOME/.cargo/env"
--------------------
ERROR: failed to solve: process "/bin/sh -c curl --proto '=https' --t

lsv1.2 -sSf https://sh.rustup.rs | sh" did not complete successf

ully: exit code: 1

View build details: docker-desktop://dashboard/build/desktop-linux/de

sktop-linux/v5kj9vc3ps7gejc1b3isotna6

Dockerfileの5行目でエラーになったようです。

5行目を修正します。

Dockerfile

1:
2:
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6:

FROM ubuntu:20.04

RUN apt update
RUN apt install -y curl
RUN curl https://sh.rustup.rs- sSf | sh
ENV PATH="/root/.cargo/bin:$PATH"

Docker buildを実行します。

> docker build -t my-rust:Dockerfile .
[+] Building 0.2s (8/8) FINISHED

docker:desktop-linux
=> [internal] load build definition from Dockerfile

0.0s
=> => transferring dockerfile: 177B

0.0s
=> [internal] load metadata for docker.io/library/ubuntu:20.04

0.0s
=> [internal] load .dockerignore

0.0s
=> => transferring context: 2B

0.0s
=> [1/4] FROM docker.io/library/ubuntu:20.04@sha256:8e5c4f0285ecbb4e

ad070431d29b576a530d3166df73ec44affc1cd27555 0.0s
=> => resolve docker.io/library/ubuntu:20.04@sha256:8e5c4f0285ecbb4e

ad070431d29b576a530d3166df73ec44affc1cd27555 0.0s
=> CACHED [2/4] RUN apt update

0.0s
=> CACHED [3/4] RUN apt install -y curl

0.0s
=> CACHED [4/4] RUN curl https://sh.rustup.rs- sSf | sh

0.0s
=> exporting to image

0.1s
=> => exporting layers

0.0s
=> => exporting manifest sha256:a32d7a379ab98cacdf8c808ed2fda326f027

e30017cf6866e09fa2e98abd7da3 0.0s
=> => exporting config sha256:911cc53fd500bedf1b51f74b192aeb8badadc3

fb37a34d480cd3b01f43fec9e2 0.0s
=> => exporting attestation manifest sha256:9a2bcd05122909769ecfca16

a31784306fad1cd6b55affccb5f3b3716129172a 0.0s
=> => exporting manifest list sha256:2e76d59c25aa4262f4b0b9c71ab3de5

3e0d55482c8c17e1548151dbeea69e405 0.0s
=> => naming to docker.io/library/my-rust:Dockerfile

0.0s
=> => unpacking to docker.io/library/my-rust:Dockerfile

0.0s

View build details: docker-desktop://dashboard/build/desktop-linux/de

sktop-linux/kkmr88idcnq18jbpzfj426k7q

エラーは出ていないようです。

コンテナに接続してみます。

> docker run -it my-rust:Dockerfile bash

rustのバージョンを確認してみます。

root@31d2e5f13c17:/# cargo --version
bash: cargo: command not found

コマンドがエラーになりました。$HOME配下を確認します。

root@31d2e5f13c17:/# cd $HOME
root@31d2e5f13c17:~# ls

$HOME配下には何もありませんでした。$PATHを確認します。

root@31d2e5f13c17:~# echo $PATH
/root/.cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/s

bin:/bin

$PATHには/root/.cargo/binが追加されていました。

Dockerfileを確認したところ5行目の-sSfの-の一がおかしかったので修正します。

Dockerfile

1:
2:
3:
4:
5:
6:

FROM ubuntu:20.04

RUN apt update
RUN apt install -y curl
RUN curl https://sh.rustup.rs -sSf | sh
ENV PATH="/root/.cargo/bin:$PATH"

Docker buildを実行します。

> docker build -t my-rust:Dockerfile .
[+] Building 6.2s (7/7) FINISHED

docker:desktop-linux
=> [internal] load build definition from Dockerfile

0.0s
=> => transferring dockerfile: 177B

0.0s
=> [internal] load metadata for docker.io/library/ubuntu:20.04

0.0s
=> [internal] load .dockerignore

0.0s
=> => transferring context: 2B

0.0s
=> [1/4] FROM docker.io/library/ubuntu:20.04@sha256:8e5c4f0285ecbb4e

ad070431d29b576a530d3166df73ec44affc1cd27555 0.0s
=> => resolve docker.io/library/ubuntu:20.04@sha256:8e5c4f0285ecbb4e

ad070431d29b576a530d3166df73ec44affc1cd27555 0.0s
=> CACHED [2/4] RUN apt update

0.0s
=> CACHED [3/4] RUN apt install -y curl

0.0s
=> ERROR [4/4] RUN curl https://sh.rustup.rs -sSf | sh

6.3s
------
> [4/4] RUN curl https://sh.rustup.rs -sSf | sh:
1.232 info: downloading installer
6.294 error: Unable to run interactively. Run with -y to accept defau

lts, --help for additional options
------
Dockerfile:5
--------------------
   3 |     RUN apt update
   4 |     RUN apt install -y curl
   5 | >>> RUN curl https://sh.rustup.rs -sSf | sh
   6 |     ENV PATH="/root/.cargo/bin:$PATH"
   7 |
--------------------
ERROR: failed to solve: process "/bin/sh -c curl https://sh.rustup.rs

-sSf | sh" did not complete successfully: exit code: 1

View build details: docker-desktop://dashboard/build/desktop-linux/de

sktop-linux/jvoe3eqe3a84v4bp4goasm3wm

Dockerfileを修正します。

Dockerfile

1:
2:
3:
4:
5:
6:

FROM ubuntu:20.04

RUN apt update
RUN apt install -y curl
RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
ENV PATH="/root/.cargo/bin:$PATH"

Docker buildを実行します。

> docker build -t my-rust:Dockerfile .
[+] Building 63.7s (8/8) FINISHED

docker:desktop-linux
=> [internal] load build definition from Dockerfile

0.0s
=> => transferring dockerfile: 186B

0.0s
=> [internal] load metadata for docker.io/library/ubuntu:20.04

0.0s
=> [internal] load .dockerignore

0.0s
=> => transferring context: 2B

0.0s
=> [1/4] FROM docker.io/library/ubuntu:20.04@sha256:8e5c4f0285ecbb4e

ad070431d29b576a530d3166df73ec44affc1cd27555 0.0s
=> => resolve docker.io/library/ubuntu:20.04@sha256:8e5c4f0285ecbb4e

ad070431d29b576a530d3166df73ec44affc1cd27555 0.0s
=> CACHED [2/4] RUN apt update

0.0s
=> CACHED [3/4] RUN apt install -y curl

0.0s
=> [4/4] RUN curl https://sh.rustup.rs -sSf | sh -s -- -y

27.5s
=> exporting to image

36.0s
=> => exporting layers

27.6s
=> => exporting manifest sha256:d21c6c193a9771f668fd25ce6f0ca38b3128

f02731bf65699cee1b17eaa0ca02 0.0s
=> => exporting config sha256:a77f8e8bb04e06412d66553cd345d09f8ceee5

3cfb69ef5e1b59f6a035315694 0.0s
=> => exporting attestation manifest sha256:d877e14452c41ade860d25c0

3568904a48d700e6d8852e307d121113446c150d 0.0s
=> => exporting manifest list sha256:5a4b47d430bb9a5136e34032f8567ea

65d5b4ae30d68b9940a7a975c42892ac8 0.0s
=> => naming to docker.io/library/my-rust:Dockerfile

0.0s
=> => unpacking to docker.io/library/my-rust:Dockerfile

8.3s

View build details: docker-desktop://dashboard/build/desktop-linux/de

sktop-linux/w7pnx0wby6873b6i0gxkqxt4g

エラーは出ていないようです。イメージを確認します。

> docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
my-rust Dockerfile 5a4b47d430bb 43 minutes ago 1.91GB

コンテナに接続しrustのバージョンを確認してみます。

> docker run -it my-rust:Dockerfile bash
root@c94b6d812ad7:/# cargo --version
cargo 1.87.0 (99624be96 2025-05-06)

うまく構築できたようです。

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