10/18/2021 0 Comments Docker For Mac 0.0.0.0 Ip Address
We have found this happens alot, BUT it is do to the fact that our lease of inactivity was set to 6 hours. You should call your mom.”RE: Clients with 0.0.0.0 IP Address. Even my dad’s like, “what’s Docker? I saw someone twitter about it on the Facebook. Have you heard of Docker? You probably have—everybody’s talking about it. Add route if absent, doing this only if VM is running 172.x.0.0/16 is subnet of your container bridge network (docker-machine ip default) retrieve ip of VM in one of host network command syntax varies with host OS sudo route -n add -net 172.x.0.0/16 (docker-machine ip default) login VM, the real linux running docker engine docker.DNAT is commonly used to publish a service from internal network to an external IP.Docker is a program that makes running and managing containers super easy. DOCKER a new DNAT (destination NAT) target. It will run Tor as an unprivileged regular user, as recommended by torproject.org.Back to our case, the traffic from IP address 172.17.0.2 (the container IP) on dpt (destination port) 5000 will be directed to the interface IP.Install the Terraform CLI (0.15+), and Docker as described in the last tutorial. You maybe want to read the getting started documentation of Docker to understand how it works. But by default containers are using the bridge network, which means that 0.0.0.0:32781 is just :32781. It’s pretty cool.As I said: the 0.0.0.0 doesn’t mean it isn’t working, it’s just because you didn’t pass the IP to Docker as option and so it display 0.0.0.0.It’s a top notch book and I highly recommend it, but I’ve had some problems running the examples on OS X. Open main.tf in your text editor, paste in the configuration below, and save the file.Recently, I’ve been working through The Docker Book. Create a file to define your infrastructure. Change into the directory.
You’ll get a better understanding of how Docker works in general and on OS X specifically. It’s not meant to be a tutorial on Docker itself, but I encourage you to follow along and type in all the commands. This isn’t the book’s fault rather, it speaks to underlying issues with how Docker works on OS X.This post is a walkthrough of the issues you’ll face running Docker on OS X and the workarounds to deal with them. ![]() Docker on OS XHere’s the thing about OS X: it’s not Linux. Here’s how it looks:The laptop is running both the client and the server, thus making it the Docker host. Docker on LinuxSuppose we want to run containers directly on our Linux laptop. The host can be any machine—your laptop, a server in the Cloud™, etc—but, because Docker uses features only available to Linux, that machine must be running Linux (more specifically, the Linux kernel). You will interact with Docker by using the client to send commands to the server.The machine running the Docker server is called the Docker host. Docker 0.0.0.0 Ip Address Install Dat SoftwareYou don’t need my help with that. Installation Step 1: Install VirtualBoxGo here and do it. This also means boot2docker, not OS X, is the Docker host, not OS X.Make sense? Let’s install dat software. Boot2docker is a “lightweight Linux distribution made specifically to run Docker containers.” Spoiler alert: you’re going to run it in a VM on your Mac.Here’s a diagram of how we’ll use boot2docker:We’ll run the Docker client natively on OS X, but the Docker server will run inside our boot2docker VM. We still need to have Linux running somewhere.Enter boot2docker. Best editing software for pc amp macDo like it says: > boot2docker up1 13:51:29 Waiting for VM to be started.1 13:51:51 Trying to get IP one more time1 13:51:51 To connect the Docker client to the Docker daemon, please set:1 13:51:51 export DOCKER_HOST=tcp://192.168.59.103:2375Step 4: Set the DOCKER_HOST environment variableThe Docker client assumes the Docker host is the current machine. Type `boot2docker up` to start the VM.Next, we can start up the VM. > brew updateFirst, we need to initialize boot2docker (we only have to do this once): > boot2docker init1 13:49:33 Downloading boot2docker ISO image.1 13:49:50 Done. I prefer homebrew because I like to manage my environment from the command line. Let’s see where it falls apart and how we can fix it. Common ProblemsWe have a “working” Docker installation. The VM runs the Docker server, and we’re communicating with it using the Docker client on OS X.Bueno. To recap: we’ve set up a VirtualBox VM running boot2docker. Step 5: ProfitSockets: Great success. You probably want to add that environment variable to your shell config. ![]() Let’s add a dockerhost entry to the /etc/hosts file: > echo $(docker-ip) dockerhost | sudo tee -a /etc/hostsGreat success. This gives us a reference for the IP address in the terminal, but it would be nice to have something similar for other apps, like the browser. Here’s a bash function to fix it:Stick that in your shell config, then use it like so: > curl $(docker-ip):49153Groovy. Scumbag boot2docker.This is annoying. The $(boot2docker ip) subcommand captures standard output but not standard error, which still goes to the terminal. What’s the deal with that nonsense.Turns out, boot2docker ip outputs the IP address to standard output and The VM's Host only interface IP address is: to standard error. Volumes are one way to give your container access to resources in the outside world. Problem #2: Mounting VolumesThe Problem: Docker mounts volumes from the boot2docker VM, not from OS X.Docker supports volumes: you can mount a directory from the host into your container. You should really just use the VM’s IP address mmkay. Here’s a bash script, taken from here, to do that:VBoxManage modifyvm "boot2docker-vm" -natpf1 "tcp-port$i,tcp,$i,$i" VBoxManage modifyvm "boot2docker-vm" -natpf1 "udp-port$i,udp,$i,$i" By doing this, Docker will forward port 80 to, say, port 49153 on the VM, and VirtualBox will forward port 49153 from the VM to localhost. Fair warning.Bonus Alternate Solution: Forward all of Docker’s ports from the VM to localhost.If you really want to access your Docker containers via localhost, you can forward all of the ports in Docker’s port range from the VM to localhost. If you’re only using one VM, it should always get the same IP, but if you’re VMing on the reg, it could change. Boot2docker doesn’t know anything about files on OS X.The Solution: Mount OS X’s /Users directory into the VM.By mounting /Users into our VM, boot2docker gains a /Users volume that points to the same directory on OS X. Docker is trying to mount /Users/Chris/web from the host into our container, but the host is boot2docker, not OS X. The problem, again, is our VM. Let’s try it out.First, let’s create a new directory and add an index.html: > cd /Users/Chris(Make sure to replace /Users/Chris with your own path).Next, we’ll start another nginx container, this time mounting our new directory inside the container at nginx’s web root: > docker run -d -P -v /Users/Chris/web:/usr/local/nginx/html -name web nginx485386b95ee49556b2cf669ea785dffff2ef3eb7f94d93982926579414eec278We need the port number for port 80 on our container: > docker port web 80Let’s try to curl our new page: > curl dockerhost:49154Well, that didn’t work.
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