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allow s3 commands to work from non commercial (ie us-gov) environments #1718

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@joelddiaz joelddiaz commented Mar 8, 2024

Issue #, if available:

N/A

Description of changes:

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when running under something like us-gov-east-1, the latest-binaries.sh script fails b/c it tries to access the us-west-2 bucket from the wrong endpoints.

this can be avoided by setting AWS_ENDPOINT_URL_S3 to point to
us-west-2, but you still end up trying to use the gov-cloud creds in the
request which would fail with:

$ ./hack/latest-binaries.sh 1.29

An error occurred (InvalidToken) when calling the ListObjectsV2 operation:
The provided token is malformed or otherwise invalid.

so, specify to perform an unauthenticated s3 api request b/c the
govcloud creds wouldn't work against the commercial cloud endpoints.

in other places in the install-worker.sh script, there are 'aws s3'
commands that would fail if running under something like the
us-gov-east-1 environment.

similar to the changes to the latest-binaries.sh script, update the
'aws' cli calls to ensure the requests are unsinged (to avoid trying
to use us-gov creds against a non-gov endpoint).

Testing Done

Tried using the ./hack/latest-binaries.sh when using govcloud credentials to see things not error out.

Performed a full end-to-end AMI build when running in us-gov-east-1.

@joelddiaz joelddiaz force-pushed the unauthenticated-latest-binaries-fetch branch from 64e33f6 to 6510c27 Compare March 18, 2024 15:28
@joelddiaz joelddiaz changed the title allow fetching latest binaries when using other endpoints/creds allow s3 commands to work from non commercial (ie us-gov) environments Mar 18, 2024
templates/al2/provisioners/install-worker.sh Outdated Show resolved Hide resolved
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@joelddiaz
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@ndbaker1 i went ahead and updated (and tested) the al2023 install-worker.sh script, and some entries in the docs

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thanks 👍 alas, the linter strikes again

doc/usage/al2.md Outdated Show resolved Hide resolved
doc/usage/al2023.md Outdated Show resolved Hide resolved
@joelddiaz joelddiaz force-pushed the unauthenticated-latest-binaries-fetch branch from ca61075 to 3d95acb Compare March 22, 2024 12:38
@joelddiaz
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hopefully the linter gods are pacified this time

@ndbaker1
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/ci build
+workflow:os_distros al2,al2023
+workflow:k8s_versions 1.29

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@ndbaker1 roger that! I've dispatched a workflow. 👍

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@ndbaker1 the workflow that you requested has completed. 🎉

AMI variantBuildTest
1.29 / al2success ✅skipped ⏭️
1.29 / al2023success ✅skipped ⏭️

hack/latest-binaries.sh Outdated Show resolved Hide resolved
@@ -13,7 +13,7 @@ MINOR_VERSION="${1}"

# retrieve the available "VERSION/BUILD_DATE" prefixes (e.g. "1.28.1/2023-09-14")
# from the binary object keys, sorted in descending semver order, and pick the first one
LATEST_BINARIES=$(aws s3api list-objects-v2 --bucket amazon-eks --prefix "${MINOR_VERSION}" --query 'Contents[*].[Key]' --output text | cut -d'/' -f-2 | sort -Vru | head -n1)
LATEST_BINARIES=$(aws s3api list-objects-v2 --bucket amazon-eks --prefix "${MINOR_VERSION}" --query 'Contents[*].[Key]' --output text --region us-west-2 --no-sign-request | cut -d'/' -f-2 | sort -Vru | head -n1)
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Let's add a big TODO outlining the long term solution (being able to use --region $binary_bucket_region)

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This is also forcing customers in aws-cn to query the bucket in aws, which isn't great.

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@jtnord jtnord Apr 11, 2024

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per https://github.com/awslabs/amazon-eks-ami/pull/1641/files#r1486814106

whilst this is not "great" it also does not come across as bad. This is just retrieving metadata - and even if that takes an extra 5 seconds, it disappears into the time taken to actually build the image.

@@ -176,6 +177,7 @@
"script": "{{template_dir}}/provisioners/install-worker.sh",
"environment_vars": [
"AWS_ACCESS_KEY_ID={{user `aws_access_key_id`}}",
"AWS_ENDPOINT_URL_S3={{user `aws_endpoint_url_s3`}}",
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@cartermckinnon cartermckinnon Mar 22, 2024

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This shouldn't be necessary IMO. The BINARY_BUCKET_REGION should be us-west-2 in govcloud for the time being (unless a private bucket is used). I think we need to stop using that variable as a proxy for AWS_REGION (the runtime region) when making other partition-specific decisions

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yeah, now that the region is explicitly set there is no real reason to need to override the S3 endpoint. i've added a commit to remove all the AWS_ENDPOINT_URL_S3 pieces

when running under something like us-gov-east-1, the latest-binaries.sh
script fails b/c it tries to access the us-west-2 bucket from the wrong
endpoints.

this can be avoided by setting AWS_ENDPOINT_URL_S3 to point to
us-west-2, but you still end up trying to use the gov-cloud creds in the
request which would fail with:

$ ./hack/latest-binaries.sh 1.29

An error occurred (InvalidToken) when calling the ListObjectsV2 operation:
The provided token is malformed or otherwise invalid.

so, specify to perform an unauthenticated s3 api request b/c the
govcloud creds wouldn't work against the commercial cloud endpoints.

in other places in the install-worker.sh script, there are 'aws s3'
commands that would fail if running under something like the
us-gov-east-1 environment.

similar to the changes to the latest-binaries.sh script, update the
'aws' cli calls to ensure the requests are unsinged (to avoid trying
to use us-gov creds against a non-gov endpoint).

and plumb through using the user-specified AWS_ENDPOINT_URL_S3 env var
into the install-worker.sh script so that the alternative endpoints can
be used instead of the us-govcloud ones when running in a govcloud
environment.
and re-order the al2 variable for aws_endpoint_url_s3 to be sorted
alphabetically with the rest of the variables.
it isn't necessary now that we are providing the region for the s3
bucket
@joelddiaz joelddiaz force-pushed the unauthenticated-latest-binaries-fetch branch from 522a939 to a733644 Compare April 1, 2024 23:09
@bradwatsonaws
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bradwatsonaws commented Apr 3, 2024

I certainly appreciate the GovCloud support! But one thing I don't understand about this process is that the hack/latest-binaries.sh script relies on the AWS CLI for execution while the install-worker.sh scripts all attempt to install the AWS CLI long after the fact. If the AWS CLI isn't installed ahead of time, the process will fail from the start in GovCloud. @cartermckinnon had a very good workaround here to use curl in the event of the AWS CLI command failing.

Is the AWS CLI installation section of the install-worker.sh script really just an attempt to upgrade vs install? If so - ok that makes more sense. From my experience I see that the AL2023 minimal AMIs come with the AWS CLI preinstalled but the AL2 minimal AMIs DO NOT, meaning this approach would not work in GovCloud for AL2. Am I off here?

@joelddiaz
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I certainly appreciate the GovCloud support! But one thing I don't understand about this process is that the hack/latest-binaries.sh script relies on the AWS CLI for execution while the install-worker.sh scripts all attempt to install the AWS CLI long after the fact. If the AWS CLI isn't installed ahead of time, the process will fail from the start in GovCloud. @cartermckinnon had a very good workaround here to use curl in the event of the AWS CLI command failing.

Is the AWS CLI installation section of the install-worker.sh script really just an attempt to upgrade vs install? If so - ok that makes more sense. From my experience I see that the AL2023 minimal AMIs come with the AWS CLI preinstalled but the AL2 minimal AMIs DO NOT, meaning this approach would not work in GovCloud for AL2. Am I off here?

I feel like I'm missing something here regarding the questions...

hack/latest-binaries.sh is a piece that is only used to run locally before kicking of the packer build step(s) for the sole purpose of passing some variables into the packer environment, and the install-worker.sh is the software installation that happens inside the instance/AMI we're building.

I've mostly been working with AL2, and indeed there is no AWS CLI pre-installed on the base-AMI images I've been using.

@bradwatsonaws
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Ah yes, you are correct @joelddiaz. I conflated the usage. My apologies and again appreciate the GovCloud love here!

@jtnord
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jtnord commented Apr 11, 2024

would presumably
Fix #1536, #1482
and obsolete #1537, #1641

@mebays
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mebays commented Apr 16, 2024

Is this still actively getting worked on. I would support this change. The buckets seem to only be in us-west-2. The aws cli errors off in gov cloud because it won't find a solution for amazon-eks.s3.us-gov-east-1.amazonaws.com, because there is no redirect or bucket in gov cloud. If hitting the endpoint directly with curl to another region amazon-eks.s3.us-east-1.amazonaws.com that ends up being in us-west-2 regardless because it returns a Permanent Redirect to us-west-2.

If you care to look at the debug logs for awscli aws s3api list-objects-v2 --region us-east-1 --bucket amazon-eks --debug will attempt the us-east-1 region get the redirect message grab the Endpoint url (amazon-eks.s3-us-west-2.amazonaws.com) from the message and retry with the retrieved endpoint.

@bradwatsonaws
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Any updates on this PR? hack/latest-binaries.sh has been broken in GovCloud for over 9 months now without using a workaround. @joelddiaz @ndbaker1 @cartermckinnon

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6 participants