我有一个docker文件，如下所示：
ARG ALPINE_VERSION=3.16.2
ARG GLAB_VERSION="1.22.0"
ARG JQ_VERSION="1.6"
FROM alpine:$ALPINE_VERSION
RUN apk add --no-cache "glab~=${GLAB_VERSION}" "jq~=${JQ_VERSION}"
ENTRYPOINT [ "glab" ]
当我试图构建图像时，我得到了一个错误，因为它无法解决glab:的版本
docker build -t gitlab/glab:latest .
[+] Building 6.6s (5/5) FINISHED
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 258B 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load metadata for docker.io/library/alpine:3.16.2 2.0s
=> CACHED [1/2] FROM docker.io/library/alpine:3.16.2@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
=> ERROR [2/2] RUN apk add --no-cache "glab~=${GLAB_VERSION}" "jq~=${JQ_VERSION}" 4.4s
------
> [2/2] RUN apk add --no-cache "glab~=${GLAB_VERSION}" "jq~=${JQ_VERSION}":
#5 1.009 fetch https://dl-cdn.alpinelinux.org/alpine/v3.16/main/x86_64/APKINDEX.tar.gz
#5 1.880 fetch https://dl-cdn.alpinelinux.org/alpine/v3.16/community/x86_64/APKINDEX.tar.gz
#5 4.227 ERROR: 'glab~=' is not a valid world dependency, format is name(@tag)([<>~=]version)
------
executor failed running [/bin/sh -c apk add --no-cache "glab~=${GLAB_VERSION}" "jq~=${JQ_VERSION}"]: exit code: 99
如果我更新Dockerfile以使用硬编码值：
RUN apk add --no-cache "glab~=1.22.0" "jq~=1.6"
它起作用：
docker build -t gitlab/glab:latest .
[+] Building 17.5s (6/6) FINISHED
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 239B 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load metadata for docker.io/library/alpine:3.16.2 0.6s
=> CACHED [1/2] FROM docker.io/library/alpine:3.16.2@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
=> [2/2] RUN apk add --no-cache "glab~=1.22.0" "jq~=1.6" 16.6s
=> exporting to image 0.2s
=> => exporting layers 0.2s
=> => writing image sha256:46bccd18a999a696ef9e80fb75983a6b5655a774b88b1412b55707cb152823e5 0.0s
=> => naming to docker.io/gitlab/glab:latest 0.0s
Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them
是否可以使用ARG以某种方式设置版本？
问题是因为我在FROM ...指令之前指定了GLAB_VERSION和JQ_VERSION。
更新Dockerfile如下：
ARG ALPINE_VERSION=3.16.2
FROM alpine:$ALPINE_VERSION
ARG GLAB_VERSION=1.22.0
ARG JQ_VERSION="1.6"
RUN apk add --no-cache "glab~=${GLAB_VERSION}" "jq~=${JQ_VERSION}"
ENTRYPOINT [ "glab" ]