A handy tool to automatically set up proxies that expose the remote container's listening ports back to the local machine. Just like kubectl portforward or docker run -p LOCAL:REMOTE, but automatically discover and update the ports to be forwarded on the fly.
You can either download the binary from the release artifacts or build it yourself.
To manually build it, clone the repo and run the build.sh script.
Running this per the documentation does not seem to work.
$ apf redis
* ==> : Forwarding local listening ports to (==>) remote ports
* <== : Forwarding to local ports from (<==) remote listening ports (use -r option)
No ports are opened.
I have tried builds from commit 38558a1 and b8059ea. I've tried the -d option, but the log file is empty
Docker version 20.10.12, build e91ed5707e Linux archlinux 5.15.10-arch1-1 #1 SMP PREEMPT Fri, 17 Dec 2021 11:17:37 +0000 x86_64 GNU/Linux
Let me know if you need any other information
Chrome and Safari seem to have problems with ports over 10.000 and block them by default. This changes the proxy listener to add only 5000 instead of 10000 to all port numbers under 1024.
For some reason most browsers seem to block webservers on ports higher than 10K. Apf now by default maps all server containers (80) to host port 10080. I tried Nginx and httpd.
Maybe change the default port to something like 9080 or 8080 to avoid this problem.
Docker ➤ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c88969704c48 nginx "/docker-entrypoint.…" 15 minutes ago Up 15 minutes 80/tcp nginx
Docker ➤ apf nginx
* ==> : Forwarding local listening ports to (==>) remote ports
* <== : Forwarding to local ports from (<==) remote listening ports (use -r option)
Forwarding: [10080 ==> 80]
Get request from Netcat. Website root (Nginx default page) is loaded.
Docker ➤ nc localhost 10080
GET / HTTP/1.2
Host: localhost
HTTP/1.1 200 OK
Server: nginx/1.21.4
Date: Thu, 10 Feb 2022 09:28:03 GMT
Content-Type: text/html
Content-Length: 615
Last-Modified: Tue, 02 Nov 2021 14:49:22 GMT
Connection: keep-alive
ETag: "61814ff2-267"
Accept-Ranges: bytes
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html { color-scheme: light dark; }
body { width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif; }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
Docker ➤
Browser
~ ➤ docker run -d --name redis redis
ae44475c8835158e4c1d36406de38048b3b797e49f5f86a80e23f3e330b89c9f
~ ➤ apf redis
* ==> : Forwarding local listening ports to (==>) remote ports
* <== : Forwarding to local ports from (<==) remote listening ports (use -r option)
Forwarding: []panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x18 pc=0x102cdff34]
goroutine 8 [running]:
io.ReadAtLeast({0x0, 0x0}, {0x140000ae00a, 0x3, 0x3}, 0x3)
/opt/hostedtoolcache/go/1.17.5/x64/src/io/io.go:328 +0x74
io.ReadFull(...)
/opt/hostedtoolcache/go/1.17.5/x64/src/io/io.go:347
github.com/ruoshan/autoportforward/manager.(*Manager).receivingLoop(0x14000066000)
/home/runner/work/autoportforward/autoportforward/manager/manager.go:86 +0xb8
created by github.com/ruoshan/autoportforward/manager.(*Manager).Run
/home/runner/work/autoportforward/autoportforward/manager/manager.go:74 +0x54
~ ➤
Please add command line argument to extend your tool for other container runtimes.
It is probably easy to add Podman support. It has compatible command line for cp/exec commands.
Containerd doesn't have cp command, but it looks for k8s you do same as described here https://github.com/containerd/containerd/issues/2044.
Change ports mapping for privileged ports
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