When developing gRPC using Tonic_, it is necessary to properly incorporate protobuf in addition to building the server process. Tonic uses PROST!, which is slightly different from the flow generated by the protoc command. Alain, a code generation CLI tool equivalent to the logic of this article, is distributed as open source.……

Each Linux distribution has its version of Ruby. But they tends to be much older than current Ruby releases. rbenv You can set up latest version with rbenv. Get rbenv as a distribution package or rbenv-installer is available for the latest rbenv. curl -fsSL https://github.com/rbenv/rbenv-installer/raw/HEAD/bin/rbenv-installer | bash rbenv-installer clones rbenv repo under $HOME/.……

When you want to access gRPC services from browsers, you need to implement gRPC-Web clients. Browsers’ fetch lacks several functionalities to implement full spec gRPC for years. While gRPC and protobuf was initially led by Google, protobuf-javascript is not maintained actively. At this time, ConnectRPC’s web client and protobuf-es set is more active.……

Asterisk’s configuration consists of numerous file sets. The dial plan, routing by number, is defined in extensions.conf. Example of a simple extension The dial plan follows the syntax as shown below: [internal] exten => _1XX,1,Dial(PJSIP/${EXTEN},30) same => n,Hangup() The structure of a block that matches each called number is as follows:……

USB storages are just one of plain block devices, so they can be formatted with ext4, major filesystem for Linux. Ext4 USB devices are mostly for Linux specific usage, excluding casual read by Windows, MacOS and so on. But ext4 can be read by any hosts with compatible ext4 drivers.……

By adding specific privileges, you can execute kubectl within a container to operate on clusters. The standard Kubernetes way for managing container privileges is using Role resource. For the assurance of RBAC and scalability, directly assigning a Role to a Pod is not possible. Instead, you need both RoleBinding and ServiceAccount, creating the following references:……

sqldef is a CLI tool to maintain RDBMS schema along with corresponding configs. It is a ridgepole clone written in Go. Unlike standard migrations in popular web frameworks, their configs define the whole schema instead of the differences between schema versions. With traditional migrations, you cannot confirm the implemented schema in the database until the migration is applied.……