Proxy fails to reestablish connection after Docker restart

[mprokopiev]

Seems like change in #8 was dropped with commit 0d37367 after this code was removed:

if err != nil {
			log.Fatalf("could not access docker socket %v", err)
		}

Was it intended? Should introduced healthcheck feature help in this scenario? If so - socket proxy doesn't terminate when docker is restarted with the same "connection refused" errors. SOCKET_PROXY_KEEPALIVE and SOCKET_PROXY_TIMEOUT are set in container and are default values.

❯ sudo cat /proc/$(docker container inspect webservice-socket-proxy --format "{{ .State.Pid }}")/environ  | strings
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=88e47aaafbff
SOCKET_PROXY_GID=1002
SOCKET_PROXY_VOLUME=/run/proxy
SOCKET_PROXY_DOCKER_SOCKET=/run/docker.sock
TZ=Europe/Kyiv
SOCKET_PROXY_UID=3000
APP_IMAGE=11notes/socket-proxy
APP_NAME=socket-proxy
APP_VERSION=2.1.6
APP_ROOT=/
SOCKET_PROXY_KEEPALIVE=10s
SOCKET_PROXY_TIMEOUT=30s