When does docker use the pull command?

In docker, the pull command is used when pulling or updating a specified image from the image warehouse; this command can pull all tagged images by setting different parameters, or ignore the verification of the image. The syntax is " docker pull [OPTIONS] NAME".

The operating environment of this tutorial: linux7.3 system, docker-1.13.1 version, Dell G3 computer.

When docker uses the pull command

docker pull: pull or update the specified image from the image warehouse

Syntax

docker pull [OPTIONS] NAME[:TAG|@DIGEST]

OPTIONS Description:

• -a: Pull all tagged images

• --disable-content-trust: Ignore the verification of the image, enabled by default

Example

Download the latest version of java image from Docker Hub.

docker pull java

Download all images whose REPOSITORY is java from Docker Hub.

docker pull -a java

Recommended learning: "docker video tutorial"

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