The aim of this page📝 is to explain how to configure and use the Helix editor based on the particular example of remapping keys and creating shortcuts. Helix is a highly configurable text editor. It uses a TOML configuration file for customization. You can open the config file by typing…

The aim of this page📝 is to explain the concept of the `coalesce` function in Terraform based on the particular example of setting a default value for a variable. — The coalesce function in Terraform takes any number of arguments and returns the first one that isn't null or an empty string. This function is useful for setting default values for variables. If the first argument to coalesce is set (i.e., it's not null or an empty string), that value…

The aim of this page📝 is to explain the process of setting up private key authentication in Snowflake based on the particular example of using SnowSQL. — Among the various authentication mechanisms Snowflake offers, there are two: password and private key. Password authentication is simple but less secure. Private key authentication provides enhanced security. Private key authentication uses a public-private key pair.

The aim of this page📝 is to explain the structure and attributes of AWS VPCs and subnets, specifically looking into the relationship between AWS accounts, regions, VPCs, and subnets. Just the basic concepts + Mermaid class diagram. — AWS accounts can access resources in multiple regions. Within each region, you can have multiple Virtual Private Clouds (VPCs). Each VPC exists within a single region and cannot span multiple regions.

The aim of this page📝 is to explain how to modify a bash script to redirect output to a file and remove ANSI escape codes, based on the particular example of a script used to print HashiCorp Nomad logs. In my case, I constantly check the logs and often forward them, say as an attachment to Jira tickets. — Originally, I had a bash script that printed HashiCorp Nomad logs. #!/bin/bash nomad_job_id_regex="(?<=jobs/)\S+" job=$(echo "$1" | grep -Po "$nomad_job_id_regex") echo echo "-----STERR-----" nomad alloc logs -job --stderr "$job" echo echo "-----STDOUT-----" nomad alloc logs -job "$job"

The aim of this page📝 is to explain the AWS Instance Metadata Service (IMDS) based on the particular example of accessing instance metadata using both IMDSv1 and IMDSv2. — AWS Instance Metadata Service (IMDS) provides data about an instance that can be used to manage and configure your running instances. Instance metadata is divided into categories, for example, host name, events, and security groups.

The aim of this page📝 is to explain outputs in terraform. Outputs are one of the three variable types in Terraform, the other 2 being input variables and locals. — outputs have 3 basic properties: printed at the end; stored in terraform state files; exposed in module outputs are printed to the terminal window at the end of the configuration run terraform stores output values in the state data output data is used to expose values when a configuration is placed in a module

The aim of this page📝 is to share how using @pytest.fixture decorator can help avoid the repetition of class instantiation in Pytest tests. I find it syntactically a bit cumbersome as you access your class through a decorated function, but it's still useful. — import pytest import example_module #ExampleClass defined in example_module @pytest.fixture def client(): return example_module.ExampleClass(TEST_CLIENT_TAG, TEST_TICKET_ID) def test_class_contains_expected_data(client): assert client.client_tag == "com_foobar" assert client.org_id == "bbc19d7f-b45b-4dad-b9bd-34a818f23241" assert client.ticket_id == "EXAMPLE-1234" assert client.dev_server == "com-foobar-dev1.net" assert client.prod_server == "com-foobar-prod1.net" def test_read_keys_returns_dict_with_dev_and_prod_readonly_keys(client…

The aim of this page📝 is to explain how to use variables in Terraform based on the particular example of assigning values to input variables from outside of the configuration files. Terraform has three types of variables: input variables, local values (locals), and outputs Let’s focus on the difference between…