the last version not working. missed value for ARG AWS_IAM_AUTH_VERSION_URL

[Gershon-A]

Hello,
the last version not working.
Seem here is missed value for ARG AWS_IAM_AUTH_VERSION_URL
I adding it as following and all work

ARG AWS_IAM_AUTH_VERSION_URL="https://amazon-eks.s3.us-west-2.amazonaws.com/1.16.8/2020-04-16/bin/linux/amd64/aws-iam-authenticator"

[ozbillwang]

Value of ARG in Dockerfile is optional, if don't feed the value, it will use the default one, if set.

My script will handle the AWS_IAM_AUTH_VERSION_URL automatically when new version released

# aws-iam-authenticator latest
iam_auth=$(curl -s https://docs.aws.amazon.com/eks/latest/userguide/install-aws-iam-authenticator.html|grep iam-auth |grep linux|head -1)
iam_auth_url=$(echo ${iam_auth} |grep -oP '(?<=curl -o aws-iam-authenticator )[^<]*'|head -1)

build --no-cache ...... --build-arg AWS_IAM_AUTH_VERSION_URL="${iam_auth_url}" -t ${image}:${tag} .

Please provide the detail, on which tag which image do you have issue.

[Gershon-A]

Sorry for the late response.
I used docker pull alpine/k8s:1.13.12

[ozbillwang]

I can

$ docker run -ti --rm alpine/k8s:1.13.12 aws-iam-authenticator version
{"Version":"v0.5.0","Commit":"1cfe2a90f68381eacd7b6dcfa2bf689e76eb8b4b"}

[Gershon-A]

The problem occurs when I build the repo locally

Step 9/13 : RUN curl -LO ${AWS_IAM_AUTH_VERSION_URL} &&     mv aws-iam-authenticator /usr/bin/aws-iam-authenticator &&     chmod +x /usr/bin/aws-iam-authenticator
 ---> Running in cabcb827ec9c
curl: no URL specified!
curl: try 'curl --help' or 'curl --manual' for more information
The command '/bin/sh -c curl -LO ${AWS_IAM_AUTH_VERSION_URL} &&     mv aws-iam-authenticator /usr/bin/aws-iam-authenticator &&     chmod +x /usr/bin/aws-iam-authenticator' returned a non-zero code: 2```

[ozbillwang]

I see. You try to docker build by yourself. but it doesn't work as this way.

The design for this repo is,

1. travis CI defines the kubernetes version in .travis.yml

env:
  - tag=1.18.2
  - tag=1.17.5
  - tag=1.16.8
  - tag=1.15.11
  - tag=1.14.9
  - tag=1.13.12

2. script build.sh will get the latest version of AWS IAM Auth, helm, and rest tools.

3. Travis CI will trigger the build daily to run the script build.sh

script:
  - bash ./build.sh

So if you want to reuse this repo to build your own image, you can do this way:

export tag=1.13.12

bash ./build.sh

then you need adjust the tag to other kubernetes version and run the build script again.

[ozbillwang]

I have updated the README.md for your concern.

https://github.com/alpine-docker/k8s/blob/master/README.md#involve-with-developing-and-testing

[Gershon-A]

Thank You!