export http_proxy= export https_proxy=
mkdir -p /etc/systemd/system/snapd.service.d/
新建两个文件http-proxy.conf和https-proxy.conf，分别填上：
[Service]
Environment="http_proxy=<your-proxy>"
和
[Service]
Environment="https_proxy=<your-proxy>"
然后重启：
sudo systemctl daemon-reload
sudo systemctl restart snapd
mkdir /etc/systemd/system/docker.service.d
touch /etc/systemd/system/docker.service.d/http-proxy.conf
文件里写：
[Service]
Environment="HTTP_PROXY=<your-proxy>"
Environment="HTTPS_PROXY=<your-proxy>"
重启：
sudo systemctl daemon-reload
sudo systemctl show --property Environment docker
sudo systemctl restart docker
To let MicroK8s use a proxy enter the proxy details in ${SNAP_DATA}/args/containerd-env and restart the containerd daemon service with:
sudo systemctl restart snap.microk8s.daemon-containerd.service
Normally, ${SNAP_DATA} points to /var/snap/microk8s/current.