mirror of https://github.com/docker/docs.git
develop/develop-images: use "console" for shell examples
This allows for easier copying of the commands, without selecting the prompt. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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@ -73,8 +73,8 @@ Assuming you built the "hello" executable example by using the source code at
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and you compiled it with the `-static` flag, you can build this Docker
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image using this `docker build` command:
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```bash
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docker build --tag hello .
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```console
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$ docker build --tag hello .
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```
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Don't forget the `.` character at the end, which sets the build context to the
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@ -84,7 +84,7 @@ current directory.
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> you need a Linux binary, rather than a Mac or Windows binary.
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> You can use a Docker container to build it:
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>
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> ```bash
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> ```console
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> $ docker run --rm -it -v $PWD:/build ubuntu:20.04
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>
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> container# apt-get update && apt-get install build-essential
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@ -94,8 +94,8 @@ current directory.
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To run your new image, use the `docker run` command:
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```bash
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docker run --rm hello
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```console
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$ docker run --rm hello
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```
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This example creates the hello-world image used in the tutorials.
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@ -37,7 +37,7 @@ the [Dockerfile reference](/engine/reference/builder/) page.
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Easiest way from a fresh install of docker is to set the `DOCKER_BUILDKIT=1`
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environment variable when invoking the `docker build` command, such as:
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```bash
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```console
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$ DOCKER_BUILDKIT=1 docker build .
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```
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@ -226,7 +226,7 @@ RUN --mount=type=ssh git clone git@github.com:myorg/myproject.git myproject
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Once the `Dockerfile` is created, use the `--ssh` option for connectivity with
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the SSH agent.
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```bash
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```console
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$ docker build --ssh default .
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```
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@ -73,21 +73,21 @@ context.
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> a text file named `hello` and create a Dockerfile that runs `cat` on it. Build
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> the image from within the build context (`.`):
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>
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> ```shell
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> mkdir myproject && cd myproject
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> echo "hello" > hello
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> echo -e "FROM busybox\nCOPY /hello /\nRUN cat /hello" > Dockerfile
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> docker build -t helloapp:v1 .
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> ```console
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> $ mkdir myproject && cd myproject
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> $ echo "hello" > hello
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> $ echo -e "FROM busybox\nCOPY /hello /\nRUN cat /hello" > Dockerfile
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> $ docker build -t helloapp:v1 .
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> ```
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>
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> Move `Dockerfile` and `hello` into separate directories and build a second
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> version of the image (without relying on cache from the last build). Use `-f`
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> to point to the Dockerfile and specify the directory of the build context:
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>
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> ```shell
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> mkdir -p dockerfiles context
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> mv Dockerfile dockerfiles && mv hello context
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> docker build --no-cache -t helloapp:v2 -f dockerfiles/Dockerfile context
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> ```console
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> $ mkdir -p dockerfiles context
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> $ mv Dockerfile dockerfiles && mv hello context
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> $ docker build --no-cache -t helloapp:v2 -f dockerfiles/Dockerfile context
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> ```
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Inadvertently including files that are not necessary for building an image
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@ -664,7 +664,7 @@ RUN echo $ADMIN_USER > ./mark
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RUN unset ADMIN_USER
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```
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```bash
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```console
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$ docker run --rm test sh -c 'echo $ADMIN_USER'
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mark
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@ -687,7 +687,7 @@ RUN export ADMIN_USER="mark" \
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CMD sh
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```
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```bash
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```console
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$ docker run --rm test sh -c 'echo $ADMIN_USER'
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```
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@ -762,13 +762,13 @@ CMD ["--help"]
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Now the image can be run like this to show the command's help:
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```bash
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```console
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$ docker run s3cmd
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```
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Or using the right parameters to execute a command:
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```bash
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```console
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$ docker run s3cmd ls s3://mybucket
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```
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@ -819,19 +819,19 @@ This script allows the user to interact with Postgres in several ways.
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It can simply start Postgres:
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```bash
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```console
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$ docker run postgres
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```
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Or, it can be used to run Postgres and pass parameters to the server:
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```bash
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```console
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$ docker run postgres postgres --help
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```
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Lastly, it could also be used to start a totally different tool, such as Bash:
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```bash
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```console
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$ docker run --rm -it postgres bash
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```
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@ -116,7 +116,7 @@ CMD ["./app"]
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You only need the single Dockerfile. You don't need a separate build script,
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either. Just run `docker build`.
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```bash
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```console
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$ docker build -t alexellis2/href-counter:latest .
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```
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@ -160,7 +160,7 @@ Dockerfile including every stage. You can specify a target build stage. The
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following command assumes you are using the previous `Dockerfile` but stops at
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the stage named `builder`:
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```bash
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```console
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$ docker build --target builder -t alexellis2/href-counter:latest .
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```
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