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[meta] add support for k8s 1.16 #635

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May 29, 2020
Merged

[meta] add support for k8s 1.16 #635

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1218aa9
[meta] add support for k8s 1.16
jmlrt May 20, 2020
f4951b7
Merge branch 'master' into k8s-116
jmlrt May 28, 2020
9802b12
[elasticsearch] test upgrade from 7.4.0 with k8s >= 1.16
jmlrt May 28, 2020
9a1d5e5
Update elasticsearch/examples/upgrade/README.md
jmlrt May 29, 2020
9576de5
use grep to avoid adding jq dependency
jmlrt May 29, 2020
9c616af
update k8s client version to 1.16
jmlrt May 29, 2020
8a44590
move upgrade logic into shell script to improve error handling
jmlrt May 29, 2020
848a53d
make script verbose
jmlrt May 29, 2020
2125fd8
update script to use jq
jmlrt May 29, 2020
21e45f2
add jq to Docker image
jmlrt May 29, 2020
6581eb7
improve script
jmlrt May 29, 2020
4a7fbe5
fix jq curl command
jmlrt May 29, 2020
faee46e
fix shellcheck
jmlrt May 29, 2020
16e57fd
remove docker-for-mac values used for testing locally
jmlrt May 29, 2020
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9 changes: 3 additions & 6 deletions elasticsearch/examples/upgrade/Makefile
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Expand Up @@ -3,15 +3,12 @@ default: test
include ../../../helpers/examples.mk

RELEASE := helm-es-upgrade
KUBE_MINOR_VERSION := $(shell kubectl version --client -o yaml | grep minor | sed 's/[^0-9]*//g')
VERSION := $(shell test $(KUBE_MINOR_VERSION) -lt 16 && echo 7.0.0-alpha1 || echo 7.4.0)

# Right now the version is hardcoded because helm install will ignore
# anything with an alpha tag when trying to install the latest release
# This hardcoding can be removed once we drop the alpha tag
# The "--set terminationGracePeriod=121" always makes sure that a rolling
# upgrade is forced for this test
install:
helm repo add elastic https://helm.elastic.co && \
helm upgrade --wait --timeout=600 --install $(RELEASE) elastic/elasticsearch --version 7.0.0-alpha1 --set clusterName=upgrade ; \
helm upgrade --wait --timeout=600 --install $(RELEASE) elastic/elasticsearch --version $(VERSION) --set clusterName=upgrade ; \
kubectl rollout status sts/upgrade-master --timeout=600s
helm upgrade --wait --timeout=600 --set terminationGracePeriod=121 --install $(RELEASE) ../../ --set clusterName=upgrade ; \
kubectl rollout status sts/upgrade-master --timeout=600s
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13 changes: 9 additions & 4 deletions elasticsearch/examples/upgrade/README.md
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@@ -1,13 +1,17 @@
# Upgrade

This example deploy a 3 nodes Elasticsearch cluster using [7.0.0-alpha1][] chart
version, then upgrade it to 7.7.0 version.
This example will deploy a 3 node Elasticsearch cluster using an old chart version,
then upgrade it to version 7.7.0.

The following upgrades are tested:
- Upgrade from [7.0.0-alpha1][] version on K8S <1.16
- Upgrade from [7.4.0][] version on K8S >=1.16 (Elasticsearch chart < 7.4.0 are
not compatible with K8S >= 1.16)


## Usage

Running `make install` command will do both 7.0.0-alpha1 install and 7.7.0
upgrade
Running `make install` command will do first install and 7.7.0 upgrade


## Testing
Expand All @@ -16,4 +20,5 @@ You can also run [goss integration tests][] using `make test`


[7.0.0-alpha1]: https://github.com/elastic/helm-charts/releases/tag/7.0.0-alpha1
[7.4.0]: https://github.com/elastic/helm-charts/releases/tag/7.4.0
[goss integration tests]: https://github.com/elastic/helm-charts/tree/master/elasticsearch/examples/upgrade/test/goss.yaml
1 change: 1 addition & 0 deletions helpers/matrix.yml
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Expand Up @@ -40,3 +40,4 @@ APM_SERVER_SUITE:
KUBERNETES_VERSION:
- '1.14'
- '1.15'
- '1.16'
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@Conky5 Conky5 May 29, 2020 •
edited
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I wish we could define the chart versions for upgrade testing here somehow so it is very clear what the test cases are, something like this

 - kubernetes_version: '1.14'
   upgrade_from_chart_version: '7.0.0-alpha1'
 - kubernetes_version: '1.15'
   upgrade_from_chart_version: '7.0.0-alpha1'
 - kubernetes_version: '1.16'
   upgrade_from_chart_version: '7.4.0'

But I think we can only fit this logic into the jenkins job inline shell script, or the Makefile inline shell script the way the job axes work, so adding into the Makefile makes sense to me.

2 changes: 1 addition & 1 deletion helpers/terraform/Dockerfile
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Expand Up @@ -2,7 +2,7 @@ FROM centos:7

ENV VAULT_VERSION 0.9.3
ENV TERRAFORM_VERSION=0.11.7
ENV KUBECTL_VERSION=1.15.4
ENV KUBECTL_VERSION=1.16.10
ENV HELM_VERSION=2.16.7
ENV DOCKER_VERSION=18.09.7

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