table of Contents
1 release Introduction
View 2 release
3 release Installation
4 release update
4.1 command line based update release
4.2 update release on file
View the new value after 4.3 update release
5 release version
6 release rollback
7 release Uninstall
1 release Introduction
In the above chapters we have introduced two terms helm of: chart and release. If the chart can be likened to the source program, then release it can be seen as a process program is running.
chart is directly perceived by the user object (which is the form of compressed .tgz format); it is understood that the release more abstract, it is specific to a logical concept of helm for a set of resources identified in operation in k8s . With the release, helm in operation k8s, no longer have to individually manage resources, and may be a group of related resources as a whole to operate, such as deleting or upgrade.
View 2 release
# helm ls
3 release Installation
Online install the specified chart, such as nginx-ingress.
# helm search repo nginx-ingress
# helm install mynginx-ingress google/nginx-ingress
4 release update
If you want to modify the configuration release runtime, you can use the -f option --set or modified.
4.1 command line based update release
## mynginx-ingress is to release the name created above; google / nginx-ingress is online chart name
# helm upgrade --set controller.hostNetwork=true \
mynginx-ingress google/nginx-ingress
4.2 update release on file
If you want to update the file-based release, you first need to download to the local chart, and then manually modify the chart of values.yaml file.
## download chart
# helm pull google/nginx-ingress
## decompress chart
# tar -zxvf nginx-ingress-1.26.1.tgz
## values.yaml modify content. Such as changing the value true hostNetwork
# sed -i 's/hostNetwork: false/hostNetwork: true/g' nginx-ingress/values.yaml
## for the file using the -f option to update release
# helm upgrade mynginx-ingress nginx-ingress -f nginx-ingress/values.yaml
View the new value after 4.3 update release
# helm get values mynginx-ingress
5 release version
## The figure is mynginx-ingress the release of each version of history. REVISION 5 which is the latest version.
# helm history mynginx-ingress
6 release rollback
# helm rollback mynginx-ingress 4
7 release Uninstall
# helm uninstall mynginx-ingress
