name: Set up an IPV6 environment
description: Creates a socket pair with a "peer" network namespace that supports IPV6
runs:
  using: "composite"
  steps:
    - name: Set up IPV6
      if: ${{ runner.os == 'Linux' }}
      shell: bash
      run: |
         ip netns add peer

         ip link add name veth0 type veth peer name veth0-peer
         ip -6 addr add fd00:0:1:1::1/64 dev veth0
         ip link set dev veth0 up

         ip link set veth0-peer netns peer
         ip netns exec peer ip -6 addr add fd00:0:1:1::2/64 dev veth0-peer
         ip netns exec peer ip link set dev veth0-peer up