Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Start defining your infrastructure using Docker Compose and leverage it for everyday development or deployment Key Features Distribute your code in an easier way for developers to get started Set up complex infrastructure for development and CI/CD purposes Deploy simple multi-container applications using Docker Compose Book Description Software development is becoming increasingly complex due to the various software components used. Applications need to be packaged with software components to facilitate their operations, making it complicated to run them. With Docker Compose, a single command can set up your application and the needed dependencies. This book starts with an overview of Docker Compose and its usage and then shows how to create an application. You will also get to grips with the fundamentals of Docker volumes and network, along with Compose commands, their purpose, and use cases. Next, you will set up databases for daily usage using Compose and, leveraging Docker networking, you will establish communication between microservices. You will also run entire stacks locally on Compose, simulate production environments, and enhance CI/CD jobs using Docker Compose. Later chapters will show you how to benefit from Docker Compose for production deployments, provision infrastructure on public clouds such as AWS and Azure, and wrap up with Compose deployments on said infrastructure. By the end of this book, you will have learned how to effectively utilize Docker Compose for day-to-day development. What you will learn Create multi-container applications using Docker Compose Use Docker Compose for daily development Connect microservices leveraging Docker network fundamentals Add monitoring to services leveraging Prometheus Deploy to production using Docker Compose Translate Compose files to Kubernetes deployments Who this book is for This book is for software engineers, developer advocates, and DevOps engineers looking to set up multi-container Docker applications using Compose without the need to set up a Docker orchestration engine. It is also for team leads looking to increase the productivity of an organization's software teams by streamlining the provisioning of complex development environments locally using Docker Compose. Readers are expected to understand containerization and must possess fundamental Docker knowledge to get started with this book.

Application software --- Development. --- Docker (Computer file)

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Message logging is the tool of choice to stay informed about the health of a machine or application. These messages, called logs, are used for various purposes, including system management, performance optimization, investigation of suspicious activities, and more generally analysis and debugging. Operations that demand a level of reliability at least equivalent to the emphasis placed on them during their use. However, the syslog protocol was originally designed to work exclusively over UDP. Traditional applications, which have not benefited from the a postorio additions such as TCP, are forced to communicate over a network that is not suitable for them (corrupted or lost messages, reordering, or unreachable server) and over which they have no control. The objective of this work is to develop a resilient syslog relay that will operate downstream of applications, collect their syslog messages and send them to a central syslog server. Several mechanisms such as the use of the TCP protocol and the retention of messages in case of connection loss guarantee reliability. Topics related to message ordering and strategies in case of an overload are also discussed and several approaches are presented to either mitigate or regulate their impact. The implementation, in the form of a prototype, is deployed inside a router running the Cisco IOx environment and features the modern syslog message engine, rsyslog. The model is evaluated on the basis of its functionality and performance in a test environment with network quality such as 3G cellular and EDGE. Several configurations are proposed depending on the type of usage involved. Although the solution does not cover all possible and imaginable problems, such as router outages, the evaluations demonstrate the efficiency and scalability of the proposed solution, which can for example easily handle several tens of thousands of messages per second with a very low resource footprint.

docker --- cisco --- iox --- syslog --- log --- rsyslog --- aarch64 --- linux --- event --- relay --- reliable --- store and forward --- kibana --- elasticsearch --- message generator --- python --- router --- cellular --- network --- TCP --- UDP --- TLS --- configuration --- ioxclient --- chronological order --- timestamp --- 3G --- EDGE --- performance --- testbed --- wanem --- downtime, --- recover --- permanent storage --- open source --- central server --- server --- low footprint --- Ingénierie, informatique & technologie > Sciences informatiques