added expose-nets

doc/git-log.txt

@@ -0,0 +1 @@
+git submodule add -b z1 http://t:f6ad1fe79d0b929d8def3339dafcbf919f311acf@qstack.pl:3000/c2023/p22.10 app

run/__

@@ -0,0 +1 @@
+f() { sudo docker run --rm -dit --privileged --name "$1" deb su - user; }; f deb1

run/__v

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+f() { 
+    sudo docker run --rm -dit --privileged \
+        -v "$(pwd)/app:/home/user/work" \
+        --name "$1" deb su - user; 
+}; 
+f $1 

run/__vp

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+f() { 
+    sudo docker run --rm -dit --privileged \
+        -v "$(pwd)/app:/home/user/work" \
+        -p 3333:3333 \
+        --name "$1" deb su - user; 
+}; 
+f $1 

script/expose-netns.sh

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+#!/bin/bash
+
+if [ $# -ne 1 ]; then
+    echo "Usage: $0 <container id or name>"
+    exit 1
+fi
+
+echo "expose container $1 netns"
+NETNS=`sudo docker inspect -f '{{.State.Pid}}' $1`
+
+if [ ! -d /var/run/netns ]; then
+    sudo mkdir /var/run/netns
+fi
+if [ -f /var/run/netns/$NETNS ]; then
+    sudo rm -rf /var/run/netns/$NETNS
+fi
+
+sudo ln -s /proc/$NETNS/ns/net /var/run/netns/$NETNS
+echo "done. netns: $NETNS"
+
+echo "============================="
+echo "current network namespaces: "
+echo "============================="
+ip netns