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Varnish Cache 7.0 HTTP reverse proxy Container image

Docker Repository on Quay

This container image includes Varnish 7.0 Cache server and general usage. Users can choose between RHEL, CentOS and Fedora based images. The RHEL images are available in the Red Hat Container Catalog, the CentOS Stream images are available on Quay.io/sclorg, and the Fedora images are available in Quay.io/fedora. The resulting image can be run using podman.

Note: while the examples in this README are calling podman, you can replace any such calls by docker with the same arguments

Description

Varnish available as container is a base platform for running Varnish server or building Varnish-based application. Varnish Cache stores web pages in memory so web servers don't have to create the same web page over and over again. Varnish Cache serves pages much faster than any application server, giving the website a significant speed up.

The image can be used as a base image for other applications based on Varnish Cache 7.0 using Openshift's s2i feature.

Usage

For this, the same application can also be built using the standalone S2I application on systems that have it available:

```
$ s2i build https://github.com/sclorg/varnish-container.git --context-dir=7/test/test-app/ rhel8/varnish-7 sample-server
```

Accessing the application:

$ curl 127.0.0.1:8080

Configuration

No further configuration is required.

S2I build support

The Varnish Cache 7.0 Container image supports the S2I tool (see Usage section). Note that the default.vcl configuration file in the directory accessed by S2I needs to be in the VCL format.

Environment variables and volumes

No special environment variables or volumes available.

Troubleshooting

Varnish logs into standard output, so the log is available in the container log. The log can be examined by running:

podman logs <container>

See also

Dockerfile and other sources for this container image are available on https://github.com/sclorg/varnish-container. In that repository you also can find another versions of Python environment Dockerfiles. Dockerfile for RHEL8 it's Dockerfile.rhel8, for RHEL9 it's Dockerfile.rhel9, Dockerfile for CentOS Stream 9 is called Dockerfile.c9s, Dockerfile for CentOS Stream 10 is called Dockerfile.c10s and the Fedora Dockerfile is called Dockerfile.fedora.