745c2af792
Example: a pod like the below should
proxy port 53 TCP and UDP to the main DNS service.
```
apiVersion: v1
kind: Pod
metadata:
name: localhost-dns-proxy
spec:
containers:
- name: proxy-udp
image: gcr.io/google_containers/proxy-to-service:v1
args: [ "udp", "53", "kube-dns.default" ]
ports:
- name: udp
protocol: UDP
containerPort: 53
hostPort: 53
- name: proxy-tcp
image: gcr.io/google_containers/proxy-to-service:v1
args: [ "tcp", "53", "kube-dns.default" ]
ports:
- name: tcp
protocol: TCP
containerPort: 53
hostPort: 53
```
9 lines
380 B
Docker
9 lines
380 B
Docker
# Alpine linux would be great for this, but it's DNS does not use seach paths.
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FROM progrium/busybox
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MAINTAINER Tim Hockin "thockin@google.com"
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RUN opkg-install socat
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# Usage: docker run -p <host-port>:<port> <this-container> <tcp|udp> <port> <service-name>
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ENTRYPOINT [ "sh", "-c", "PROTO=$(echo $0 | tr a-z A-Z); exec socat ${PROTO}-LISTEN:$1,reuseaddr,fork ${PROTO}:$2:$1" ]
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