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Diffstat (limited to 'docs/report')
| -rw-r--r-- | docs/report/vpp_performance_tests/documentation/containers.rst | 80 |
1 files changed, 40 insertions, 40 deletions
diff --git a/docs/report/vpp_performance_tests/documentation/containers.rst b/docs/report/vpp_performance_tests/documentation/containers.rst index c9ed64ab06..14817df64f 100644 --- a/docs/report/vpp_performance_tests/documentation/containers.rst +++ b/docs/report/vpp_performance_tests/documentation/containers.rst @@ -146,13 +146,13 @@ Docker Docker builds on top of Linux kernel containment features, and offers a high-level tool for wrapping the processes, maintaining and -executing them in containers [docker]_. Currently it using *runc* a CLI tool for -spawning and running containers according to the `OCI specification -<https://www.opencontainers.org/>`_ +executing them in containers [docker]_. Currently it is using *runc*, +a CLI tool for spawning and running containers according to the +`OCI specification <https://www.opencontainers.org/>`_. A Docker container image is a lightweight, stand-alone, executable -package of a piece of software that includes everything needed to run -it: code, runtime, system tools, system libraries, settings. +package that includes everything needed to run the container: +code, runtime, system tools, system libraries, settings. CSIT uses Docker to manage the maintenance and execution of containerized applications used in CSIT performance tests. @@ -225,13 +225,13 @@ Current CSIT implementation is illustrated using UML Class diagram: | +----------+---------+ | | - +------+-------+ +------+-------+ - | LXC | | Docker | - +--------------+ +--------------+ - | (inherinted) | | (inherinted) | - +------+-------+ +------+-------+ - | | - +---------+---------+ + +------+------+ +------+------+ + | LXC | | Docker | + +-------------+ +-------------+ + | (inherited) | | (inherited) | + +------+------+ +------+------+ + | | + +----------+---------+ | | constructs | @@ -323,38 +323,38 @@ variables and no methods except overriden ``__getattr__`` and ``__setattr__``. Instance variables are assigned to container dynamically during the ``construct_container(**kwargs)`` call and are passed down from the RF keyword. -Usage example: +There is no parameters check functionality. Passing the correct arguments +is a responsibility of the caller. + +Examples +~~~~~~~~ + +This section contains a high-level example of multiple initialization steps +via ContainerManager; taken from an actual CSIT code, +but with non-code lines (comments, Documentation) removed for brevity. + +: .. code-block:: robotframework - | Construct VNF containers on all DUTs - | | [Arguments] | ${technology} | ${image} | ${cpu_count}=${1} | ${count}=${1} - | | ... - | | ${group}= | Set Variable | VNF - | | ${skip_cpus}= | Evaluate | ${vpp_cpus}+${system_cpus} + | Start containers for test + | | [Arguments] | ${dut}=${None} | ${nf_chains}=${1} | ${nf_nodes}=${1} + | | ... | ${auto_scale}=${True} | ${pinning}=${True} + | | + | | Set Test Variable | @{container_groups} | @{EMPTY} + | | Set Test Variable | ${container_group} | CNF + | | Set Test Variable | ${nf_nodes} | | Import Library | resources.libraries.python.ContainerUtils.ContainerManager - | | ... | engine=${container_engine} | WITH NAME | ${group} - | | ${duts}= | Get Matches | ${nodes} | DUT* - | | :FOR | ${dut} | IN | @{duts} - | | | ${env}= | Create List | DEBIAN_FRONTEND=noninteractive - | | | ${mnt}= | Create List | /tmp:/mnt/host | /dev:/dev - | | | ${cpu_node}= | Get interfaces numa node | ${nodes['${dut}']} - | | | ... | ${dut1_if1} | ${dut1_if2} - | | | Run Keyword | ${group}.Construct containers - | | | ... | name=${dut}_${group} | node=${nodes['${dut}']} | mnt=${mnt} - | | | ... | image=${container_image} | cpu_count=${container_cpus} - | | | ... | cpu_skip=${skip_cpus} | cpuset_mems=${cpu_node} - | | | ... | cpu_shared=${False} | env=${env} | count=${container_count} - | | | ... | install_dkms=${container_install_dkms} - | | Append To List | ${container_groups} | ${group} - -Mandatory parameters to create standalone container are: ``node``, ``name``, -``image`` [imagevar]_, ``cpu_count``, ``cpu_skip``, ``cpuset_mems``, -``cpu_shared``. - -There is no parameters check functionality. Passing required arguments is in -coder responsibility. All the above parameters are required to calculate the -correct cpu placement. See documentation for the full reference. + | | ... | engine=${container_engine} | WITH NAME | ${container_group} + | | Construct chains of containers + | | ... | dut=${dut} | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} + | | ... | auto_scale=${auto_scale} | pinning=${pinning} + | | Acquire all '${container_group}' containers + | | Create all '${container_group}' containers + | | Configure VPP in all '${container_group}' containers + | | Start VPP in all '${container_group}' containers + | | Append To List | ${container_groups} | ${container_group} + | | Save VPP PIDs Kubernetes ~~~~~~~~~~ |