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[aws-eks] document how to define dependencies between k8s resources

See original GitHub issue

Kubernetes resources are not deployed in the order they were added via add_resource method. If one of them is a namespace, for instance, others fail with a namespace not found error.

Reproduction Steps

eks_cluster = aws_eks.Cluster(..)
eks_cluster.add_resource('namespace', namespace_resource)
eks_cluster.add_resource('resource_1', resource_1_deployed_in_the_namespace)
..
eks_cluster.add_resource('resource_n', resource_n_deployed_in_the_namespace)

Error Log

  2/53 | 10:48:01 | CREATE_IN_PROGRESS   | Custom::AWSCDK-EKS-KubernetesResource | DevEksCluster/DevEksCluster/manifest-NginxRole/Resource/Default (DevEksClustermanifestNginxRoleEE01848C) Resource creation Initiated
  3/53 | 10:48:01 | CREATE_FAILED        | Custom::AWSCDK-EKS-KubernetesResource | DevEksCluster/DevEksCluster/manifest-NginxRole/Resource/Default (DevEksClustermanifestNginxRoleEE01848C) Failed to create resource. b'Error from server (NotFound): error when creating "/tmp/manifest.yaml": namespaces "ingress-nginx" not found\n'
	new CustomResource (/tmp/jsii-kernel-jIZKhq/node_modules/@aws-cdk/aws-cloudformation/lib/custom-resource.js:32:25)
	\_ new KubernetesResource (/tmp/jsii-kernel-jIZKhq/node_modules/@aws-cdk/aws-eks/lib/k8s-resource.js:22:9)
	\_ Cluster.addResource (/tmp/jsii-kernel-jIZKhq/node_modules/@aws-cdk/aws-eks/lib/cluster.js:215:16)
	\_ _wrapSandboxCode (/home/lky/Repositories/HuuugeStarsCfConfig/contrib/cloudformation/cdk/eks/cluster/.env/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:6498:51)
	\_ Kernel._wrapSandboxCode (/home/lky/Repositories/HuuugeStarsCfConfig/contrib/cloudformation/cdk/eks/cluster/.env/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7131:20)
	\_ ret._ensureSync (/home/lky/Repositories/HuuugeStarsCfConfig/contrib/cloudformation/cdk/eks/cluster/.env/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:6498:25)
	\_ Kernel._ensureSync (/home/lky/Repositories/HuuugeStarsCfConfig/contrib/cloudformation/cdk/eks/cluster/.env/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7102:20)

Environment

CLI Version :1.4.0
Framework Version:1.4.0
OS :all
Language :all

Other

This is 🐛 Bug Report

Issue Analytics

State:
Created 4 years ago
Comments:7 (2 by maintainers)

Top GitHub Comments

1reaction

arjanschaafcommented, Apr 26, 2020

@FarshadNiayesh I ran into a similar situation and provided an example on how to create a dependency between two helm charts. But it would also work to provide a dependency between the namespace & chart: https://github.com/aws/aws-cdk/issues/7592#issuecomment-619598485

0reactions

farshadniayeshpourcommented, Apr 23, 2020

Yes, dependencies can be used to specify order between resources. We should add some example in the EKS module’s README that demonstrates this.

@eladb can you provide an example of how to do this? I am trying to create a dependency between namespace and helm chart.

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