| title |
|---|
Docker images |
This document provides guidelines for the Docker image provided in the context of Kyma.
Place images in the Kyma Docker registry located at eu.gcr.io/kyma-project. For development and proof of concepts, use the following location: eu.gcr.io/kyma-project/snapshot.
All images use the following attributes:
- an image name which is the same as the related project. Do not use prefixes. If the image requires sub-modularization, append it as in "istio-mixer"
- a tag with a semantic version number, like
0.3.2
Assume an initializer image for the Helm Broker extension. This is the example of the location and the name of the image:
eu.gcr.io/kyma-project/helm-broker-initializer:0.1.0Base all images on an image that is as small as possible in size and dependency. A base image must have a specified version. Do not use the latest tag.
An application based on Go should originate from a scratch image. If a scratch image does not have the specific tooling available, you can use an alpine base image having the package catalog updated.
A JavaScript-based application should originate from an nginx-alpine base image with an updated package catalog.
All images use the source label with a link to the GitHub repository containing the sources.
Define labels as in the following example:
source = [email protected]:kyma-project/examples.gitGo from scratch:
FROM scratch
LABEL [email protected]:kyma-project/examples.git
ADD main /
CMD ["/main"]Go from alpine:
FROM alpine:3.7
RUN apk --no-cache upgrade && apk --no-cache add curl
LABEL [email protected]:kyma-project/examples.git
ADD main /
CMD ["/main"]JavaScript from nginx:
FROM nginx:1.13-alpine
RUN apk --no-cache upgrade
LABEL [email protected]:kyma-project/examples.git
COPY nginx.conf /etc/nginx/nginx.conf
COPY /build var/public
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]