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What is tmax?

The positioning of tmax is a command line tool with a little artificial intelligence. If you frequently deal with the terminal daily, tmax will greatly improve your work efficiency.

The design idea of tmax

  • Have a local storage as a knowledge base
  • Efficient search algorithm and accurate feedback
  • Full command line interaction
  • Make your very long cmd short

How tmax works?

build tmax

For liunx and macos you can install tmax as follows.

Use make build and you will get tmax in the directory.

chmod +x tmax && cp tmax /usr/local/bin

Install tmax

  • go get If you have golang environment, use go get to install tmax
go get -u github.com/hantmac/tmax
  • brew install For mac os, you can use brew:
brew tap hantmac/tap && brew install --build-from-source tmax
  • binary file If you use unix, you can download binary file to use tmax:
wget https://github.com/hantmac/tmax/releases/download/v0.1.0/tmax_v0.1.0_linux_x86_64.tar.gz && \
tar -zxvf tmax_v0.1.0_linux_x86_64.tar.gz -C /usr/local/bin && chmod +x /usr/local/bin/tmax

Before using tmax

Then, you need to tmax generate to generate a config file in $HOME/.tmax.yaml and the file look like as follows:

  check: curl
  filternodecpu: kubectl get nodes -o=jsonpath="{range .items[*]}{.metadata.name}{'\t'}{.status.capacity.cpu}{'\t'}{.status.capacity.memory}{'\n'}{end}"
  filternodetaint: kubectl get nodes -o=jsonpath="{range .items[*]}{.metadata.name}{'\t'}{.spec.taints[*].key}{'\n'}{end}"
  corednsedit: kubectl edit cm coredns -nkube-system
  allnode: kubectl get no
  alldeploy: kubectl get deploy
  allpod: kubectl get pod -A
  busyboxrun: kubectl run busybox --rm -ti --image=busybox /bin/sh
  allnodeip: kubectl get node -o=jsonpath="{range .items[*]}{.metadata.name}{'\t'}{.status.addresses[0].address}{'\n'}{end}"
  podResource: kubectl get pod -o custom-columns=NAME:metadata.name,podIP:status.podIP,hostIp:spec.containers[0].resources
  getns: kubectl get ns
  createdemo: kubectl create deployment nginx --image=nginx
  exposedemo: kubectl expose deployment nginx --port=80
  getnetwork: kubectl get networkpolicy
  runbox: kubectl run busybox --rm -ti --image=busybox /bin/sh
  "tar": "tar -xjvf test.tar.bz2"

As you can see, there are many long commands those hard to keep in your mind. If you want to quickly get a long command, even if you have memorized it, it takes a long time to type it into the console, not to mention that sometimes you can’t remember such a long command.

At this moment, tmax appeared, it will solve the problem just mentioned.

What will tmax bring me?

tmax has 3 mode: directly mode, search mode and interactive mode. And tmax will make your very long terminal cmd short, improve your operation efficiency.

directly mode

If you clearly know the key you want to execute the command, you can use directly mode. Use ‘tmxa somekey’ , example: tmax check will execute curl

additional param

First, suppose we define the following short command in the configuration file ~/.tmax.yaml Now I want to see the simple information of a certain pod, just execute:

tmax getpod myapp-deploy

myapp-deploy is a custom parameter, you can even add parameters later:

tmax getpod myapp-deploy -n YOUR_NAMESPACE

You can freely customize your own tmax configuration file according to the required custom parameters.

template parameter

You should notice that custom parameters can only be appended after the tmax command. If you want to add a variable parameter in the middle, you can’t use it. For example, if you want to make a taint for a k8s node, and this taint is commonly used by your company, you must execute kubectl taint node node-, and the name of the node will become a variable The parameters and the taint name are fixed, so the good way is to enter the node name to complete the command. Don’t panic, tmax supports template parameters. For the above command we can add in ~/.tmax.yaml:

taintnode: kubectl taint node {{.n}} reserved=cd-staging:NoSchedule

Just execute the following content to complete the taint command:

tmax taintnode YOUR_NODE_NAME

search mdoe

If you know the general content of the command you want to execute, you can use the search mode to find and execute it.

Use tmax s CONTENTOFCMD, example: tmax s pod or tmax search pod.

interactive search mode

If you don’t want to search, tmax has interactive mode. Just type tmax and enter to interactive mode.