Jx: Upgrade skaffold dependency to satisfy Jenkins and EKS

[phillycheeze]

Summary

The current version of skaffold shipped with jx is outdated. Particularly, EKS in it's latest AMI node release disables the bridge network (see: https://github.com/awslabs/amazon-eks-ami/issues/183)

Skaffold has added a new configuration option in skaffold/v1beta10 (release 0.29.0) for specifying the docker.network parameter passed along to the docker run command (see https://github.com/GoogleContainerTools/skaffold/issues/1771)

In that issue it is recommended to start docker with the --network=host argument in order for the docker container to connect to the internet.

Steps to reproduce the behavior

1. Spin up jx in an existing EKS cluster with kubernetes 1.12 node AMIs (this is only reproducible on 1.12)
2. Build out a pipeline using the default Jenkinsfile and skaffold.yaml that is generated from jx import
3. The docker container being built by skaffold can't resolve any DNS or hit any IP address due to the bridge network being disabled in the latest AMIs.

Expected behavior

The docker container should be able to reach the network.

Actual behavior

No network connection inside of the docker container.

Jx version

The output of jx version is:

NAME               VERSION
jx                 2.0.101
jenkins x platform 2.0.276
Kubernetes cluster v1.12.6-eks-d69f1b
kubectl            v1.14.1
helm client        Client: v2.13.1+g618447c
git                git version 2.21.0
Operating System   Mac OS X 10.14.4 build 18E226

Jenkins type

• [ ] Next Generation (Tekton + Prow)
• [*] Classic Jenkins
• [ ] Serverless Jenkins (JenkinsFileRunner + Prow)

Kubernetes cluster

AWS EKS created manually.

Operating system / Environment

OSX - not using CLI.

[garethjevans]

Closing this, the latest install has skaffold v0.31.0 available

[martin-patsov]

For anybody having the following errors:
Your Skaffold version might be too old. Download the latest version (0.37.1) at https://storage.googleapis.com/skaffold/releases/latest/skaffold-linux-amd64 or creating runner: parsing skaffold config: unable to parse config: yaml: unmarshal errors:\n line 8: field network not found in type v1beta2.DockerArtifact:

This may not be working out of the box for you. You may need to update the first line of skaffold.yaml to a greater version. E.g. apiVersion: skaffold/v1beta11 is working.