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Setting up X
Install XQuartz (X.Org X Window System that runs on MacOS)
Then in the XQuartz preferences, under the security tab, check the allow connections from network clients button
Quickstart (tldr)
Given XQuartz is set up
Find your IP address and allow access to the X server (assuming en0 is your network device)
pull the container
run it with the following environment variables (passing in your localIP to DISPLAY)
Now that's fun, but let's go through how the Dockerfile was built, and add a generic script that would ensure it would run on any MacBook.
Building the Dockerfile
Using ubuntu as the base image. Let's work out the RUN commands we'll need.
Base software
Let's install the packages required, xauth, xorg, and sudo since we want your non-root user to be able to escalate to root.
For the games, we'll install gnome-games and the KDE games. the kdegames package doesn't exist anymore, so we'll individually install all the known packages.
User configuration
We'll create the user ubuntu with sudo privledges
Then set it as default with its home as the WORKDIR, add the /usr/games to PATH
Game list
I'd like the user to have a list of games avaiable with a description for each one. A trick is to use apt-cache search ^packagename$ to get the description, e.g.,
What we can do is run this against all the games in the /usr/games directory and redirect it to a file gamelist that we can output when the container is run. Using some xargs magic, we can speed it up during the build
where the -P flag is for Parallel mode and nproc will print the number of processing units available to the current process, so we can parallelise the process as much as possible.
Wire Puzzle Mac Os Pro
Entrypoint
We'll set the entrypoint to be a script
where it will print the list of games, cd in /user/games, and exec whatever command is passed to the container
Putting it all together
Optimising for layers and image size we now have our Dockerfile
Running the container
I wrote a script that finds the MacBook's active network device and the local IP, gives it access to the X server, and runs the container
it works as expected
Wire Puzzle Mac Os Catalina
With no arguments passed, the container will cat the gamelist file and give the user an interactive shell in the /usr/games directory. Passing a game name as an argument, the container will simply run the game.
Nice and simple! 👏
GitHub repository
Here you can download a plan for making a wire puzzle. The wire puzzle, as its very name suggests, is made from wire and consists of two or several interlocked parts.
The point of this toy lies in the assembling and disassembling of the interlocked parts. The oldest preserved examples of wire puzzles originate from the 17th century, but they became greatly popular at the beginning of the 20th century. Due to their simplicity and a large number of various types, wire puzzles have become an interesting and original gift idea over time. The wire puzzle, whose plan is offered here, is made up of 5 bent wire parts. The task of this wire puzzle is to take off Part 2 and to put it back in position, like shown on image below.
Setting up X
Install XQuartz (X.Org X Window System that runs on MacOS)
Then in the XQuartz preferences, under the security tab, check the allow connections from network clients button
Quickstart (tldr)
Given XQuartz is set up
Find your IP address and allow access to the X server (assuming en0 is your network device)
pull the container
run it with the following environment variables (passing in your localIP to DISPLAY)
Now that's fun, but let's go through how the Dockerfile was built, and add a generic script that would ensure it would run on any MacBook.
Building the Dockerfile
Using ubuntu as the base image. Let's work out the RUN commands we'll need.
Base software
Let's install the packages required, xauth, xorg, and sudo since we want your non-root user to be able to escalate to root.
For the games, we'll install gnome-games and the KDE games. the kdegames package doesn't exist anymore, so we'll individually install all the known packages.
User configuration
We'll create the user ubuntu with sudo privledges
Then set it as default with its home as the WORKDIR, add the /usr/games to PATH
Game list
I'd like the user to have a list of games avaiable with a description for each one. A trick is to use apt-cache search ^packagename$ to get the description, e.g.,
What we can do is run this against all the games in the /usr/games directory and redirect it to a file gamelist that we can output when the container is run. Using some xargs magic, we can speed it up during the build
where the -P flag is for Parallel mode and nproc will print the number of processing units available to the current process, so we can parallelise the process as much as possible.
Wire Puzzle Mac Os Pro
Entrypoint
We'll set the entrypoint to be a script
where it will print the list of games, cd in /user/games, and exec whatever command is passed to the container
Putting it all together
Optimising for layers and image size we now have our Dockerfile
Running the container
I wrote a script that finds the MacBook's active network device and the local IP, gives it access to the X server, and runs the container
it works as expected
Wire Puzzle Mac Os Catalina
With no arguments passed, the container will cat the gamelist file and give the user an interactive shell in the /usr/games directory. Passing a game name as an argument, the container will simply run the game.
Nice and simple! 👏
GitHub repository
Here you can download a plan for making a wire puzzle. The wire puzzle, as its very name suggests, is made from wire and consists of two or several interlocked parts.
The point of this toy lies in the assembling and disassembling of the interlocked parts. The oldest preserved examples of wire puzzles originate from the 17th century, but they became greatly popular at the beginning of the 20th century. Due to their simplicity and a large number of various types, wire puzzles have become an interesting and original gift idea over time. The wire puzzle, whose plan is offered here, is made up of 5 bent wire parts. The task of this wire puzzle is to take off Part 2 and to put it back in position, like shown on image below.
Mac Os Mojave
To create this puzzle, you can use 2 - 3mm thick steel wire. Copper wire is not recommended, nor any other non-ferrous metal, for the reason they get easily deformed causing the puzzle to be less durable. In general, wire puzzles should be made from wire 2 - 3mm thick. We have chosen the thickness of 2mm just to make the bending easier for you; when you gain the skills needed, you will start using thicker wire with no extra effort.
Wire puzzle - Solution
You can bend the wire in various ways, but prior to bending you should clean it well and then tighten it as much as possible to get it straightened out. The wire length required for each part is given in the drawings. For bending you can use tools such as pliers or a wire bender, you can make jigs or fixtures, you can bend around the pipe, around the edges of the objects, etc., the important thing is to get results as close to the drawings as possible.
We recommend that you print out the appearance of each part on paper, so you can compare the results of each phase during the work to this template.
