Ansible vs Bash for Quick Automation
Published at March 7, 2019 · 1 min read
I don’t want to argue on this topic. I really believe that it’s better to use Ansible if possible even for some ‘home’ automation. But looking on my scripts for some development automation (setup VMs, clone sources, install some software) I realized that there’s a mix of Ansible playbooks, Bash and Python scripts. It becomes to be hard for maintaining from one side, but it works as expected for me from another side....
Install Docker Using Ansible With One Command
Published at March 6, 2019 · 1 min read
It’s boring to install Docker and Docker Compose on any host I need. Maybe Kubernetes is the right weight to di such things but Docker fits all my needs at the moment, so I use it for some development scenarios. I’ve got a simple docker_bootstrap.sh script to install Ansible if it’s not installed yet and setup Docker on the same host: #!/bin/bash pip install ansible ansible-galaxy install nickjj.docker ansible-playbook ./site.yml -t docker I use Ansible from pip because it’s not supposed to be installed on a production environment....
Published at March 5, 2019 · 1 min read
RSS is a great thing for news and blog reading. It’s good structured (not like a Facebook), contains everything needed (do you really like threads in Twitter?) and has good enough tools for offline reading during flights or a train ride (that’s why Telegram channels don’t fit my needs. RSS gives you a lot of freedom on what content do you want to receive and doesn’t force you to read it right at this moment because you won’t be able to find this later....
Published at March 4, 2019 · 1 min read
I didn’t pay attention to some variables I used in bash script before. I just realized that there are a lot of variables I don’t see in the output of env or export commands. There a lot of internal bash variables you can use or change. I don’t have a lot of bash scripts in my sources. Usually, I don’t write scripts bigger than 10-20 lines. TBH, most of scripts are copy-pasted from somewhere with minor changes....
Published at March 3, 2019 · 1 min read
Since GitHub allows to store unlimited private repositories, I moved everything there. It’s really great to have such sources storage for free. Once I pushed everything to GitHub, I need to sync my repositories over all environments I have. I wrote a simple Python script below to clone all my GitHub repositories: My use case could not fit everyone, but you can adjust my script to cover your use cases. Everything I need is:...
Vue.js Components Registration
Published at March 2, 2019 · 2 min read
I can’t add anything from the technical point of view to the official documentation but I would like to drop a few lines about local vs global components registration. Global registration I prefer to use it mostly for the 3rd-party libraries which are used a lot. E.g. vue-fontawesome, bootstrap-vue, etc. It’s reasonable to use global registration for own components if they are used on the most pages. Local registration I think it’s reasonable to use it as a default solution for component registration....
Dynamic method generation with default arguments
Published at March 1, 2019 · 2 min read
NOTE: please, be sure that you really need such things in your project. It could be useful if you understand how it works. You can also spend hours or even days to understand what is going wrong if you don’t understand how method generation works in the project. NOTE: this post is based on OpenStack Horizon integration tests. We use method generation in our tests framework to generate methods like ‘go_to_some_page’....
Published at February 28, 2019 · 1 min read
I’m working too much time with script languages like Python, JavaScript, and even bash. I almost forgot that sometimes I need to compile my sources. A stupid mistake was made on TypeScript project I’m working on: I didn’t add a job on CI which will compile sources to JavaScript. Of course, I use npm run build build to make a production bundle. I see TypeScript compile errors in my console when I run the code....
Dependencies List for My Project
Published at February 27, 2019 · 1 min read
Time to time you need to get all dependencies for a project you work with. It’s good if you have an up-to-date list in the requirements.txt file. In another case, you can always use pip freeze command in your virtualenv. It provides a flat list of all installed dependencies. To get the dependencies tree, it’s I use pipdeptree package. It provides a simple CLI tool to get dependencies tree with version constraints for packages where they are specified....
Cast JavaScipt object to TypeScript classes
Published at February 26, 2019 · 2 min read
TypeScript could give you a false hope that I’ve got a strong-typed code and everything will work as expected with JavaScript. In reality, TypeScript doesn’t do anything after sources are compiled to JavaScript. It means, in runtime, you’ll face good-known JavaScript with it dynamic typing. The lack of any runtime type checking is a big minus for TypeScript. You’ll lose all your type at the same moment when browser executes code....