Docker For Mac Http Api

Please consider the following scenario: On my MacBook Pro I want to access a web application (SPA/PWA) and an API both running in Docker containers behind another nginx Docker container (reverse proxy managing SSL) from an iOS device. So I have: • 1 iOS device having IP 192.168.178.77 • 1 MacBook Pro having IP 192.168.178.64 • 1 Docker container running nginx having two server_name settings: app.dev and api.dev, both using self-signed SSL certificates. The challenge: the're no option in the local Router to point DNS entries to 192.168.178.64. /etc/hosts has these entries: 192.168.178.64 app.dev 192.168.178.64 api.dev The easiest solution I've found is to use dnsmasq running in a Docker container. So what is dnsmasq?

The Docker for Mac application does not use docker-machine to provision VM. It creates and manages it directly. At installation time, Docker for Mac provisions an HyperKit VM based on Alpine Linux, running Docker Engine. It exposes the docker API on a socket in /var/tmp/docker.sock.

Dnsmasq is a lightweight, easy to configure, DNS forwarder and DHCP server. It is designed to provide DNS and optionally, DHCP, to a small network. It can serve the names of local machines which are not in the global DNS. The DHCP server integrates with the DNS server and allows machines with DHCP-allocated addresses to appear in the DNS with names configured either in each host or in a central configuration file. Dnsmasq supports static and dynamic DHCP leases and BOOTP/TFTP for network booting of diskless machines In order to start dnsmasq in Docker container, simply run this command: docker run --name dnsmasq -d -p 53: 53/udp -p 5380: 8080 -v /opt/dnsmasq.conf:/etc/dnsmasq.conf --log-opt 'max-size=100m' -e 'USER=foo' -e 'PASS=bar' jpillora/dnsmasq This will run dnsmasq mapping a configuration from /opt/dnsmasq.conf into the container. Make sure /opt/dnsmsq.conf at least contains this line: address=/dev/192.168.178.64 This will route all traffic to *.dev to 192.168.178.64.

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Dnsmasq will also inspect your local /etc/hosts file and route traffic appropriately. It also provides a simple UI where you can verify your hosts file got hooked up correctly: Just browse to and enter the credentials foo and bar from the docker run command above. The UI output should look like this: [webproc] 2017/04/23 18:35:54 loaded config files changes from disk [webproc] 2017/04/23 18:35:54 agent listening on dnsmasq: started, version 2.76 cachesize 150 dnsmasq: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth no-DNSSEC loop-detect inotify dnsmasq: reading /etc/resolv.conf dnsmasq: using nameserver 192.168.65.1#53 dnsmasq: read /etc/hosts - 7 addresses The next step is to update the DNS settings on the iOS and macOS devices. The iOS device has to point to the IP address of the macOS device: The macOS device has to point to itself: Click 'Advanced.' , then select 'DNS': The last step is to call the and URIs on the iOS device and confirm the SSL warnings.