which are assumed to provide a distributed, consistent key-value store. The default topology service plugin is etcd2. The topology service exists for several reasons: 14 • It enables tablets to coordinate Documentation • Execution Plans vtworker vtworker hosts long-running processes. It supports a plugin architecture and offers libraries so that you can easily choose tablets to use. Plugins are available additional dependencies required to build and run Vitess: sudo yum install -y make unzip g++ etcd curl git wget Notes: • We will be using etcd as the topology service. The command make tools can also install

which are assumed to provide a distributed, consistent key-value store. The default topology service plugin is etcd2. The topology service exists for several reasons: • It enables tablets to coordinate among additional dependencies required to build and run Vitess: sudo yum install -y make unzip g++ etcd curl git wget Notes: • We will be using etcd as the topology service. The command make tools can also install want to download the Vitess source code and clone the Vitess GitHub repo: cd ~ git clone https://github.com/vitessio/vitess.git cd vitess Set environment variables that Vitess will require. It is recommended

which are assumed to provide a distributed, consistent key-value store. The default topology service plugin is etcd2. The topology service exists for several reasons: • It enables tablets to coordinate among their underlying MySQL instances. vtworker vtworker hosts long-running processes. It supports a plugin architecture and offers libraries so that you can easily choose tablets to use. Plugins are available additional dependencies required to build and run Vitess: sudo yum install -y make unzip g++ etcd curl git wget Notes: • We will be using etcd as the topology service. The command make tools can also install

which are assumed to provide a distributed, consistent key-value store. The default topology service plugin is etcd2. The topology service exists for several reasons: • It enables tablets to coordinate among additional dependencies required to build and run Vitess: sudo yum install -y make unzip g++ etcd curl git wget Notes: • We will be using etcd as the topology service. The command make tools can also install want to download the Vitess source code and clone the Vitess GitHub repo: cd ~ git clone https://github.com/vitessio/vitess.git cd vitess Set environment variables that Vitess will require. It is recommended

which are assumed to provide a distributed, consistent key-value store. The default topology service plugin is etcd2. The topology service exists for several reasons: • It enables tablets to coordinate among their underlying MySQL instances. vtworker vtworker hosts long-running processes. It supports a plugin architecture and offers libraries so that you can easily choose tablets to use. Plugins are available additional dependencies required to build and run Vitess: sudo yum install -y make unzip g++ etcd curl git wget Notes: • We will be using etcd as the topology service. The command make tools can also install

which are assumed to provide a distributed, consistent key-value store. The default topology service plugin is etcd2. The topology service exists for several reasons: • It enables tablets to coordinate among additional dependencies required to build and run Vitess: sudo yum install -y make unzip g++ etcd curl git wget Notes: • We will be using etcd as the topology service. The command make tools can also install want to download the Vitess source code and clone the Vitess GitHub repo: cd ~ git clone https://github.com/vitessio/vitess.git cd vitess Set environment variables that Vitess will require. It is recommended

which are assumed to provide a distributed, consistent key-value store. The default topology service plugin is etcd2. The topology service exists for several reasons: • It enables tablets to coordinate among additional dependencies required to build and run Vitess: sudo yum install -y make unzip g++ etcd curl git wget Notes: • We will be using etcd as the topology service. The command make tools can also install want to download the Vitess source code and clone the Vitess GitHub repo: cd ~ git clone https://github.com/vitessio/vitess.git cd vitess Set environment variables that Vitess will require. It is recommended

which are assumed to provide a distributed, consistent key-value store. The default topology service plugin is etcd2. The topology service exists for several reasons: • It enables tablets to coordinate among additional dependencies required to build and run Vitess: sudo yum install -y make unzip g++ etcd curl git wget Notes: • We will be using etcd as the topology service. The command make tools can also install want to download the Vitess source code and clone the Vitess GitHub repo: cd ~ git clone https://github.com/vitessio/vitess.git cd vitess Set environment variables that Vitess will require. It is recommended

Vitess links to an example authentication plugin which is available here: https://gist.github.com/ajm188/5b2c7d3ca76004a297e6e279a54c2299. This example plugin extracts the actor from either the context from a cookie. 6 Vitess Security Audit, 2023 When a Vitess administrator adds an authentication plugin, VTAdmin-api adds it as a middleware at the http mux layer. VTAdmin-api does this in vitess/go/vt/vtadmin/api the routes are initialized: First VTAdmin-api checks if the user has registered an authentication plugin: And later, it gets added to the http mux layer: Authorization Once a request has been authenticated