requires tools that developers know and understand. GitOps is our name for how we use developer tooling to drive operations. GitOps is a way to do Continuous Delivery. More specifically, it is an operating approach, your CI tooling pushes and deploys images to the cluster. For the CI system to apply the changes to a cluster, you have to share your API credentials with the CI tooling and that means your CI - Continuous Integration eBook 10 GitOps Separation of Privileges CI Tooling Test, Build, Scan, Publish CD Tooling Synchronize Git with the cluster Runs outside the production cluster Read

approach, your CI tooling pushes and deploys images to the cluster. For the CI system to apply the changes to a cluster, you have to share your API credentials with the CI tooling. That means your CI you're using GitOps. GITOPS DEPLOYMENT WORKFLOW OVERVIEW The GitOps core machinery is in its CI/CD tooling, with the critical piece being continuous deployment (CD) that supports Git-cluster synchronization cluster, CI and CD tooling, and the container repository, providing your team with a secure method for creating updates. CI TOOLING: TEST, BUILD, SCAN, PUBLISH CD TOOLING: RECONCILIATION BETWEEN

application code, and configs. Updates to the application repo trigger processes with your CI/CD tooling to update the config repo. The config changes are then pushed/pulled to the deployment environment as Code (IaC) One very common practice teams adopt for their GitOps strategy is implementing IaC tooling and best practices. The process involves managing and provisioning infrastructure resources using files, allowing for rapid, repeatable, and error-free provisioning of infrastructure. Popular tooling to support IaC includes Terraform, Pulumi, Ansible, Salt, and Puppet. These tools provide the necessary

the solution to those issues and what we expect from GitOps 2.0 – the next generation of GitOps tooling. Visibility into the whole software lifecycle The current generation of GitOps tools focuses environments should be considered an integral part of any deployment solution. In the case of GitOps tooling, we can handle the promotion mechanism in a different number of ways, such as introducing an automation

will always find a special place in our hearts, we strive to provide be�er tooling for troubleshoo�ng. This includes tooling to provide: Event monitoring with metadata: When a packet is dropped, the tool of exis�ng kernel infrastructure (e.g. drivers, netdevices, tunnels, protocol stack, sockets) and tooling (e.g. iproute2) as well as the safety guarantees which the kernel provides. Unlike kernel modules and dele�ons. Toolchain Current user space tooling, introspec�on facili�es and kernel control knobs around BPF are discussed in this sec�on. Note, the tooling and infrastructure around BPF is s�ll rapidly

will always find a special place in our hearts, we strive to provide better tooling for troubleshooting. This includes tooling to provide: Event monitoring with metadata: When a packet is dropped, the existing kernel infrastructure (e.g. drivers, netdevices, tunnels, protocol stack, sockets) and tooling (e.g. iproute2) as well as the safety guarantees which the kernel provides. Unlike kernel modules deletions. Toolchain Current user space tooling, introspection facilities and kernel control knobs around BPF are discussed in this section. Note, the tooling and infrastructure around BPF is still rapidly

Virtual machines (VMs) QEMU Create VMs with Multipass 29 Create cloud image VMs with UVtool VM tooling How to use the libvirt library with virsh How to use virt-manager and other virt* tools Containers there are upstream projects that choose to ship their software through PPAs because of the existing tooling that allows users to easily add them to their Ubuntu systems. It is important to mention that the This is a simplistic backup strategy, of course. It’s being shown here as a reference for the basic tooling you can use for backups and restores. Kerberos is a network authentication system based on the principal

will always find a special place in our hearts, we strive to provide better tooling for troubleshooting. This includes tooling to provide: Event monitoring with metadata: When a packet is dropped, the existing kernel infrastructure (e.g. drivers, netdevices, tunnels, protocol stack, sockets) and tooling (e.g. iproute2) as well as the safety guarantees which the kernel provides. Unlike kernel modules deletions. Toolchain Current user space tooling, introspection facilities and kernel control knobs around BPF are discussed in this section. Note, the tooling and infrastructure around BPF is still rapidly

will always find a special place in our hearts, we strive to provide better tooling for troubleshooting. This includes tooling to provide: Event monitoring with metadata: When a packet is dropped, the the same node. The CLI allows inspecting the state and status of the local agent. It also provides tooling to directly access the eBPF maps to validate their state. Operator The Cilium Operator is responsible agent & system information for bug reporting cilium Cilium CLI client contrib, tools Additional tooling and resources used for development daemon The cilium-agent running on each node examples Various

will always find a special place in our hearts, we strive to provide better tooling for troubleshooting. This includes tooling to provide: Event monitoring with metadata: When a packet is dropped, the the same node. The CLI allows inspecting the state and status of the local agent. It also provides tooling to directly access the eBPF maps to validate their state. Operator The Cilium Operator is responsible agent & system information for bug reporting cilium Cilium CLI client contrib, tools Additional tooling and resources used for development daemon The cilium-agent running on each node examples Various