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Diffstat (limited to 'docs/report/vpp_performance_tests/documentation/containers.rst')
| -rw-r--r-- | docs/report/vpp_performance_tests/documentation/containers.rst | 144 |
1 files changed, 10 insertions, 134 deletions
diff --git a/docs/report/vpp_performance_tests/documentation/containers.rst b/docs/report/vpp_performance_tests/documentation/containers.rst index 313b5b7575..c9ed64ab06 100644 --- a/docs/report/vpp_performance_tests/documentation/containers.rst +++ b/docs/report/vpp_performance_tests/documentation/containers.rst @@ -60,7 +60,7 @@ list of applicable security control mechanisms: escaping a container or cause harm to the host, [apparmor]_. - SELinux - Security Enhanced Linux is a Linux kernel security module that provides similar function to AppArmor, supporting access control - security policies including United States Department of Defense–style + security policies including United States Department of Defense-style mandatory access controls. Mandatory access controls allow an administrator of a system to define how applications and users can access different resources such as files, devices, networks and inter- @@ -111,8 +111,6 @@ Current CSIT testing framework integrates following Linux container orchestration mechanisms: - LXC/Docker for complete VPP container lifecycle control. -- Combination of Kubernetes (container orchestration), Docker (container - images) and Ligato (container networking). LXC ~~~ @@ -163,31 +161,6 @@ containerized applications used in CSIT performance tests. configuration file controls the range of CPU cores the Docker image must run on. VPP thread pinning defined vpp startup.conf. -Kubernetes -~~~~~~~~~~ - -Kubernetes [k8sdoc]_, or K8s, is a production-grade container orchestration -platform for automating the deployment, scaling and operating -application containers. Kubernetes groups containers that make up an -application into logical units, pods, for easy management and discovery. -K8s pod definitions including compute resource allocation is provided in -.yaml files. - -CSIT uses K8s and its infrastructure components like etcd to control all -phases of container based virtualized network topologies. - -Ligato -~~~~~~ - -Ligato [ligato]_ is an open-source project developing a set of cloud-native -tools for orchestrating container networking. Ligato integrates with FD.io VPP -using goVPP [govpp]_ and vpp-agent [vppagent]_. - -**Known Issues** - -- Currently using a separate LF Jenkins job for building csit-centric - prod_vpp_agent docker images vs. dockerhub/ligato ones. - Implementation -------------- @@ -386,110 +359,30 @@ correct cpu placement. See documentation for the full reference. Kubernetes ~~~~~~~~~~ -Kubernetes is implemented as separate library ``KubernetesUtils.py``, -with a class with the same name. This utility provides an API for L2 -Robot Keywords to control ``kubectl`` installed on each of DUTs. One -time initialization script, ``resources/libraries/bash/k8s_setup.sh`` -does reset/init kubectl, applies Calico v2.6.3 and initializes the -``csit`` namespace. CSIT namespace is required to not to interfere with -existing setups and it further simplifies apply/get/delete -Pod/ConfigMap operations on SUTs. +For the future use, Kubernetes [k8sdoc]_ is implemented as separate library +``KubernetesUtils.py``, with a class with the same name. This utility provides +an API for L2 Robot Keywords to control ``kubectl`` installed on each of DUTs. +One time initialization script, ``resources/libraries/bash/k8s_setup.sh`` +does reset/init kubectl, and initializes the ``csit`` namespace. CSIT +namespace is required to not to interfere with existing setups and it +further simplifies apply/get/delete Pod/ConfigMap operations on SUTs. Kubernetes utility is based on YAML templates to avoid crafting the huge YAML configuration files, what would lower the readability of code and -requires complicated algorithms. The templates can be found in -``resources/templates/kubernetes`` and can be leveraged in the future -for other separate tasks. +requires complicated algorithms. Two types of YAML templates are defined: - Static - do not change between deployments, that is infrastructure containers like Kafka, Calico, ETCD. -- Dynamic - per test suite/case topology YAML files e.g. SFC_controller, - VNF, VSWITCH. +- Dynamic - per test suite/case topology YAML files. Making own python wrapper library of ``kubectl`` instead of using the official Python package allows to control and deploy environment over the SSH library without the need of using isolated driver running on each of DUTs. -Ligato -~~~~~~ - -Ligato integration does require to compile the ``vpp-agent`` tool and build the -bundled Docker image. Compilation of ``vpp-agent`` depends on specific VPP. In -``ligato/vpp-agent`` repository there are well prepared scripts for building the -Docker image. Building docker image is possible via series of commands: - -:: - - git clone https://github.com/ligato/vpp-agent - cd vpp_agent/docker/dev_vpp_agent - sudo docker build -t dev_vpp_agent --build-arg AGENT_COMMIT=<agent commit id>\ - --build-arg VPP_COMMIT=<vpp commit id> --no-cache . - sudo ./shrink.sh - cd ../prod_vpp_agent - sudo ./build.sh - sudo ./shrink.sh - -CSIT requires Docker image to include the desired VPP version (per patch -testing, nightly testing, on demand testing). - -The entire build process of building ``dev_vpp_agent`` image heavily depends -on internet connectivity and also takes a significant amount of time (~1-1.5h -based on internet bandwidth and allocated resources). The optimal solution would -be to build the image on jenkins slave, transfer the Docker image to DUTs and -execute separate suite of tests. - -To adress the amount of time required to build ``dev_vpp_agent`` image, we can -pull existing specific version of ```dev_vpp_agent``` and exctract the -```vpp-agent``` from it. - -We created separate sets of Jenkins jobs, that will be executing following: - -1. Clone latest CSIT and Ligato repositaries. -2. Pull specific version of ``dev_vpp_agent`` image from Dockerhub. -3. Extract VPP API (from ``.deb`` package) and copy into ``dev_vpp_agent`` - image -4. Rebuild vpp-agent and extract outside image. -5. Build ``prod_vpp_image`` Docker image from ``dev_vpp_agent`` image. -6. Transfer ``prod_vpp_agent`` image to DUTs. -7. Execute subset of performance tests designed for Ligato testing. - -:: - - +-----------------------------------------------+ - | ubuntu:16.04 <-----| Base image on Dockerhub - +------------------------^----------------------+ - | - | - +------------------------+----------------------+ - | ligato/dev_vpp_agent <------| Pull this image from - +------------------------^----------------------+ | Dockerhub ligato/dev_vpp_agent:<version> - | - | Rebuild and extract agent.tar.gz from dev_vpp_agent - +------------------------+----------------------+ - | prod_vpp_agent <------| Build by passing own - +-----------------------------------------------+ | vpp.tar.gz (from nexus - | or built by JJB) and - | agent.tar.gz extracted - | from ligato/dev_vpp_agent - - -Approximate size of vnf-agent docker images: - -:: - - REPOSITORY TAG IMAGE ID CREATED SIZE - dev-vpp-agent latest 78c53bd57e2 6 weeks ago 9.79GB - prod_vpp_agent latest f68af5afe601 5 weeks ago 443MB - -In CSIT we need to create separate performance suite under -``tests/kubernetes/perf`` which contains modified Suite setup in comparison -to standard perf tests. This is due to reason that VPP will act as vswitch in -Docker image and not as standalone installed service. - Tested Topologies ~~~~~~~~~~~~~~~~~ @@ -509,19 +402,6 @@ Following container networking topologies are tested in |csit-release|: - eth-l2xcbase-eth-2memif-1docker. - eth-l2xcbase-eth-1memif-1docker -- Kubernetes/Ligato topologies: - - - eth-1drcl2bdbasemaclrn-eth-2memif-1drcl2xc-1paral - - eth-1drcl2bdbasemaclrn-eth-2memif-2drcl2xc-1horiz - - eth-1drcl2bdbasemaclrn-eth-2memif-4drcl2xc-1horiz - - eth-1drcl2bdbasemaclrn-eth-4memif-2drcl2xc-1chain - - eth-1drcl2bdbasemaclrn-eth-8memif-4drcl2xc-1chain - - eth-1drcl2xcbase-eth-2memif-1drcl2xc-1paral - - eth-1drcl2xcbase-eth-2memif-2drcl2xc-1horiz - - eth-1drcl2xcbase-eth-2memif-4drcl2xc-1horiz - - eth-1drcl2xcbase-eth-4memif-2drcl2xc-1chain - - eth-1drcl2xcbase-eth-8memif-4drcl2xc-1chain - References ~~~~~~~~~~ @@ -539,7 +419,3 @@ References .. [seccomp] `SECure COMPuting with filters <https://www.kernel.org/doc/Documentation/prctl/seccomp_filter.txt>`_. .. [docker] `Docker <https://www.docker.com/what-docker>`_. .. [k8sdoc] `Kubernetes documentation <https://kubernetes.io/docs/home/>`_. -.. [ligato] `Ligato <https://github.com/ligato>`_. -.. [govpp] `FD.io goVPP project <https://wiki.fd.io/view/GoVPP>`_. -.. [vppagent] `Ligato vpp-agent <https://github.com/ligato/vpp-agent>`_. -.. [imagevar] Image parameter is required in initial commit version. There is plan to implement container build class to build Docker/LXC image. |