Why I did it
Share docker image to support gnmi container and telemetry container
Work item tracking
Microsoft ADO 25423918:
How I did it
Create telemetry image from gnmi docker image.
Enable gnmi container and disable telemetry container by default.
How to verify it
Run end to end test.
Why I did it
In an effort to allow people to build a slim version of SONiC to fit on devices to small storage, there is a need to disable some unneeded features.
The docker-gbsyncd are only applicable to devices with external gearboxes and might not apply to devices that need a small image.
It is therefore desirable to have a knob to not include these gbsyncd containers.
Work item tracking
Microsoft ADO (number only):
How I did it
Add a new config INCLUDE_GBSYNCD which is enabled by default to retain the previous behavior.
Setting it to n will not include the platform/components/docker-gbsyncd-*.mk.
How to verify it
Set INCLUDE_GBSYNCD = n and witness that docker-gbsyncd images are not present in the final image.
* Reduce SONiC image filesystem size
Add a build option to reduce the image size.
The image reduction process is affecting the builds in 2 ways:
- change some packages that are installed in the rootfs
- apply a rootfs reduction script
The script itself will perform a few steps:
- remove file duplication by leveraging hardlinks
- under /usr/share/sonic since the symlinks under the device folder are lost during the build.
- under /var/lib/docker since the files there will only be mounted ro
- remove some extra files (man, docs, licenses, ...)
- some image specific space reduction (only for aboot images currently)
The script can later be improved but for now it's reducing the rootfs
size by ~30%.
* restore fully featured vim package
Why I did it
Add config to set pip HTTP timeout value in building process for build to be more stable.
Default value is 60.
Work item tracking
Microsoft ADO (number only): 25190067
How I did it
Insert timeout options in all pip commands.
- Why I did it
To simplify usability and increase adoption of the sFlow + dropmon feature without rebuilding an image.
- How I did it
Remove the ENABLE_SFLOW_DROPMON compilation flag, and remove unnecessary patches.
- How to verify it
1. Configure the sFlow on the switch
2. Configure the Host (PTF)
3. Launch the sflowtool on Host (PTF)
4. Send the dropped packets from Host (PTF) to the switch via scapy
5. Check the L3 counters on the switch
6. Check the samples that were captured by the sflowtool on the Host (PTF)
Signed-off-by: vadymhlushko-mlnx <vadymh@nvidia.com>
Why I did it
Add dhcp_server ipv4 feature to SONiC.
HLD: sonic-net/SONiC#1282
How I did it
To be clarify: This container is disabled by INCLUDE_DHCP_SERVER = n for now, which would cause container not build.
Add INCLUDE_DHCP_SERVER to indicate whether to build dhcp_server container
Add docker file for dhcp_server, build and install kea-dhcp4 inside container
Add template file for dhcp_server container services.
Add entry for dhcp_server to FEATURE table in config_db.
How to verify it
Build image with INCLUDE_DHCP_SERVER = y to verify:
Image can be install successfully without crush.
By config feature state dhcp_server enabled to enable dhcp_server.
Why I did it
Currently, k8s master image is generated from a separate branch which we created by ourselves, not release ones. We need to commit these k8s master related code to master branch for a better way to do k8s master image build out.
Work item tracking
Microsoft ADO (number only):
19998138
How I did it
Install k8s dashboard docker images
Install geneva mds and mdsd and fluentd docker images and tag them as latest, tagging latest will help create container always with the latest version
Install azure-storage-blob and azure-identity, this will help do etcd backup and restore.
Install kubernetes python client packages, this will help read worker and container state, we can send these metric to Geneva.
Remove mdm debian package, will replace it with the mdm docker image
Add k8s master entrance script, this script will be called by rc-local service when system startup. we have some master systemd services in compute-move repo, when VMM service create master VM, VMM will copy all master service files inside VM, the entrance script will setup all services according to the service files.
When the entrance script content changed, the PR build will set include_kubernetes_master=y to help do validation for k8s master related code change. The default value of include_kubernetes_master should be always n for public master branch. We will generate master image from internal master branch
How to verify it
Build with INCLUDE_KUBERNETES_MASTER = y
Why I did it
[Build] Change the build option from ENABLE_FIPS_FEATURE to INCLUDE_FIPS
Work item tracking
Microsoft ADO (number only): 24485797
How I did it
- Why I did it
Since the prod signing tool is vendor specific, and each vendor may have different arguments they would like to use in the script, we would need a way to inject those arguments to the script.
- How I did it
Add a compilation flag SECURE_UPGRADE_PROD_TOOL_ARGS which vendors can use to inject any flag they would want to the prod signing script.
- How to verify it
Build SONiC using your own prod script
- Why I did it
In order to reduce sonic build time, there is an option to acquire sonic slave docker(s) from artifact server (reduce sonic make configure time).
Current implementation supports only convention of:
<REGISTRY_SERVER>:<REGISTRY_PORT>/<SLAVE_BASE_IMAGE>:<SLAVE_BASE_TAG>
In case the SLAVE_BASE_IMAGE appear in internal path inside the server, the convention should be like that:
<REGISTRY_SERVER>:<REGISTRY_PORT><REGISTRY_SERVER_PATH>/<SLAVE_BASE_IMAGE>:<SLAVE_BASE_TAG>
When REGISTRY_SERVER_PATH (that is set on rules/config) will have to start with "/".
If REGISTRY_SERVER_PATH will not be set, the behavior will remain the same it works today.
- How I did it
Add ability to set REGISTRY_SERVER_PATH and update the code for docker image tag and docker image pull accordingly
- How to verify it
Use sonic slave docker image from artifact server in which the image is kept in internal folder and make sure it consume it.
Depends on https://github.com/sonic-net/sonic-linux-kernel/pull/315
#### Why I did it
The name SECURE_UPGRADE_DEV_SIGNING_CERT is misleading, this flag is relevant to both to dev and prod signing.
#### How I did it
Rename all mentions of name SECURE_UPGRADE_DEV_SIGNING_CERT to SECURE_UPGRADE_SIGNING_CERT - this is also done with PR in sonic-linux-kernel repository
#### How to verify it
Build SONiC using your own prod script
This is done because when there is a default value, we mount to this path, and this creates this folder on the host.
#### Why I did it
Fix issue that running without overwriting SECURE_UPGRADE_DEV_SIGNING_KEY and SECURE_UPGRADE_DEV_SIGNING_CERT dummy folders are being created on the host.
#### How I did it
Removed the default assignment to SECURE_UPGRADE_DEV_SIGNING_KEY and SECURE_UPGRADE_DEV_SIGNING_CERT
#### How to verify it
Build SONiC using your own prod script
Why I did it
Support to add SONiC OS Version in device info.
It will be used to display the version info in the SONiC command "show version". The version is used to do the FIPS certification. We do not do the FIPS certification on a specific release, but on the SONiC OS Version.
SONiC Software Version: SONiC.master-13812.218661-7d94c0c28
SONiC OS Version: 11
Distribution: Debian 11.6
Kernel: 5.10.0-18-2-amd64
How I did it
Why I did it
Find a new bug on kubelet side. The kubernetes-cni plug-in was removed in #12997, the reason is that the plug-in will be auto installed when install kubeadm, and will report error if we don't remove the install code. But after removal, the version auto installed is different from what we installed before. This will affect the kubelet action in some scenarios we don't find before. Need to install it by another way.
How I did it
Install kubernetes-cni==0.8.7-00 before install kubeadm
How to verify it
Flannel binary will be installed under /opt/cni/bin/ folder
- Why I did it
Add Secure Boot support to SONiC OS.
Secure Boot (SB) is a verification mechanism for ensuring that code launched by a computer's UEFI firmware is trusted. It is designed to protect a system against malicious code being loaded and executed early in the boot process before the operating system has been loaded.
- How I did it
Added a signing process to sign the following components:
shim, grub, Linux kernel, and kernel modules when doing the build, and when feature is enabled in build time according to the HLD explanations (the feature is disabled by default).
- How to verify it
There are self-verifications of each boot component when building the image, in addition, there is an existing end-to-end test in sonic-mgmt repo that checks that the boot succeeds when loading a secure system (details below).
How to build a sonic image with secure boot feature: (more description in HLD)
Required to use the following build flags from rules/config:
SECURE_UPGRADE_MODE="dev"
SECURE_UPGRADE_DEV_SIGNING_KEY="/path/to/private/key.pem"
SECURE_UPGRADE_DEV_SIGNING_CERT="/path/to/cert/key.pem"
After setting those flags should build the sonic-buildimage.
Before installing the image, should prepared the setup (switch device) with the follow:
check that the device support UEFI
stored pub keys in UEFI DB
enabled Secure Boot flag in UEFI
How to run a test that verify the Secure Boot flow:
The existing test "test_upgrade_path" under "sonic-mgmt/tests/upgrade_path/test_upgrade_path", is enough to validate proper boot
You need to specify the following arguments:
Base_image_list your_secure_image
Taget_image_list your_second_secure_image
Upgrade_type cold
And run the test, basically the test will install the base image given in the parameter and then upgrade to target image by doing cold reboot and validates all the services are up and working correctly
#### Why I did it
Add support of California-SB237 conformance.
https://github.com/sonic-net/SONiC/tree/master/doc/California-SB237
#### How I did it
Expire user passwords during build
#### How to verify it
Enable build flag and check if default user is prompted for a new password
Why I did it
[Build] Support Debian snapshot mirror to improve build stability
It is to enhance the reproducible build, supports the Debian snapshot mirror. It guarantees all the docker images using the same Debian mirror snapshot and fixes the temporary build failure which is caused by remote Debain mirror indexes changed during the build. It is also to fix the version conflict issue caused by no fixed versions of some of the Debian packages.
How I did it
Add a new feature to support the Debian snapshot mirror.
How to verify it
Why I did it
We plan to pilot k8s feature, need to fix several bugs including enable telemetry feature and add platform label.
How I did it
Add support feature set, only enable telemetry container upgrade for now
Add platform label for scheduler usage
Remove CNI installation code, it would be auto installed when install kubeadm
How to verify it
After sonic device join k8s cluster, show node labels to check if platform label is visible.
Signed-off-by: Yun Li yunli1@microsoft.com
Why I did it
It's possible to speed up some parts of a build using parallel compression/decompression.
This is especially important for build_debian.sh.
How I did it
pigz is a parallel implementation of gzip: https://zlib.net/pigz/
Some programs like docker and mkinitramfs can automatically detect and use it instead of gzip.
For tar we need to select it directly.
To enable this feature you need to set GZ_COMPRESS_PROGRAM=pigz
- Why I did it
This optimization is needed for DPU SONiC. DPU SONiC runs a limited set of containers and teamd and radv containers are not part of them. Unlike the other containers, there was no possibility to disable teamd and radv containers compilation.
To reduce DPU SONiC compilation time and reduce the image size this commit adds the possibility to disable their compilation.
- How I did it
Two new configuration options are added to rules/config file:
INCLUDE_TEAMD
INCLUDE_ROUTER_ADVERTISER
By default to preserve the existing behavior both options are enabled. There are two ways to override them:
To change option value to "n" in rules/config file.
To override their value using SONIC_OVERRIDE_BUILD_VARS env variable:
SONIC_OVERRIDE_BUILD_VARS="SONIC_INCLUDE_TEAMD=y SONIC_INCLUDE_ROUTER_ADVERTISER=n"
- How to verify it
The default behavior is preserved. To verify it compile the image without overriding new options. Install the image and verify that both teamd and radv containers are present and running.
To verify the new options override them with "n" value. Compile and install image. Verify that no docker containers are present. Verify that SWSS can start without errors.
This feature caches all the deb files during docker build and stores them
into version cache.
It loads the cache file if already exists in the version cache and copies the extracted
deb file from cache file into Debian cache path( /var/cache/apt/archives).
The apt-install always installs the deb file from the cache if exists, this
avoid unnecessary package download from the repo and speeds up the overall build.
The cache file is selected based on the SHA value of version dependency
files.
Why I did it
How I did it
How to verify it
* 03.Version-cache - framework environment settings
It defines and passes the necessary version cache environment variables
to the caching framework.
It adds the utils script for shared cache file access.
It also adds the post-cleanup logic for cleaning the unwanted files from
the docker/image after the version cache creation.
* 04.Version cache - debug framework
Added DBGOPT Make variable to enable the cache framework
scripts in trace mode. This option takes the part name of the script to
enable the particular shell script in trace mode.
Multiple shell script names can also be given.
Eg: make DBGOPT="image|docker"
Added verbose mode to dump the version merge details during
build/dry-run mode.
Eg: scripts/versions_manager.py freeze -v \
'dryrun|cmod=docker-swss|cfile=versions-deb|cname=all|stage=sub|stage=add'
* 05.Version cache - docker dpkg caching support
This feature caches all the deb files during docker build and stores them
into version cache.
It loads the cache file if already exists in the version cache and copies the extracted
deb file from cache file into Debian cache path( /var/cache/apt/archives).
The apt-install always installs the deb file from the cache if exists, this
avoid unnecessary package download from the repo and speeds up the overall build.
The cache file is selected based on the SHA value of version dependency
files.
Why I did it
Provide GNMI native write interface for configuration.
How I did it
Add configuration parameters for GNMI native write.
How to verify it
Check build pipeline.
#### Why I did it
Currently at the Azure build system, the P4RT container is disabled by default at the build time. Here the goal is to include the P4RT container at the build time while disabling it at the runtime. The user can enable/disable the p4rt app through the config based on the preference.
#### How I did it
Changed the config in rules/config and init-cfg.json.j2
Why I did it
Replace configuration parameter for gnmi write, and we will add other gnmi write features in the future.
How I did it
Update rules/config and other Makefile.
How to verify it
Build sonic image.
* Add k8s master feature
Signed-off-by: Yun Li <yunli1@microsoft.com>
* Update kubernetes version mistake and make variable passing clear
Signed-off-by: Yun Li <yunli1@microsoft.com>
* Add CRI-dockerd package
Signed-off-by: Yun Li <yunli1@microsoft.com>
* Update version variable passing logic
Signed-off-by: Yun Li <yunli1@microsoft.com>
* Upgrade the worker kubernetes version
Signed-off-by: Yun Li <yunli1@microsoft.com>
* Install xml file parse tool
Signed-off-by: Yun Li <yunli1@microsoft.com>
Signed-off-by: Yun Li <yunli1@microsoft.com>
- Why I did it
Implemented sonic-net/SONiC#1001
- How I did it
Install systemd-bootchart tool and provide default config for it.
- How to verify it
Run build and verify systemd-bootchart is installed.
Signed-off-by: Stepan Blyschak <stepanb@nvidia.com>
* [sflow + dropmon] added INCLUDE_SFLOW_DROPMON flag, added patches for hsflowd
*Added a capability of monitoring dropped packets for the sFlow daemon in order to improve network - monitoring, diagnostic, and troubleshooting. The drop monitor service allows the sFlow daemon to export another type of sample - dropped packets as Discard samples alongside Counter samples and Packet Flow samples.
Signed-off-by: Vadym Hlushko <vadymh@nvidia.com>
Why I did it
The docker storage driver vfs is not a good option for build, it uses the “deep copy” when building a new layer, leads to lower performance and more space used on disk than other storage drivers.
A better docker storage driver is the default one overlay2, it is a modern union filesystem.
Currently, the build dockers are created as a user dockers(docker-base-stretch-<user>, etc) that are
specific to each user. But the sonic dockers (docker-database, docker-swss, etc) are
created with a fixed docker name and common to all the users.
docker-database:latest
docker-swss:latest
When multiple builds are triggered on the same build server that creates parallel building issue because
all the build jobs are trying to create the same docker with latest tag.
This happens only when sonic dockers are built using native host dockerd for sonic docker image creation.
This patch creates all sonic dockers as user sonic dockers and then, while
saving and loading the user sonic dockers, it rename the user sonic
dockers into correct sonic dockers with tag as latest.
docker-database:latest <== SAVE/LOAD ==> docker-database-<user>:tag
The user sonic docker names are derived from 'DOCKER_USERNAME and DOCKER_USERTAG' make env
variable and using Jinja template, it replaces the FROM docker name with correct user sonic docker name for
loading and saving the docker image.
Why I did it
To sign SONiC kernel image and allow secure boot based system to verify SONiC image before loading into the system.
How I did it
Pass following parameter to rules/config.user
Ex:
SONIC_ENABLE_SECUREBOOT_SIGNATURE := y
SIGNING_KEY := /path/to/key/private.key
SIGNING_CERT := /path/to/public/public.cert
How to verify it
Secure boot enabled system enrolled with right public key of the, image in the platform UEFI database will able to verify image before load.
Alternatively one can verify with offline sbsign tool as below.
export SBSIGN_KEY=/abc/bcd/xyz/
sbverify --cert $SBSIGN_KEY/public_cert.cert fsroot-platform-XYZ/boot/vmlinuz-5.10.0-8-2-amd64 mage
O/P:
Signature verification OK
Implement infrastructure that allows enabling address sanitizer
for docker containers. Enable address sanitizer for SWSS container.
- Why I did it
To add a possibility to compile SONiC applications with address sanitizer (ASAN).
ASAN is a memory error detector for C/C++. It finds:
1. Use after free (dangling pointer dereference)
2. Heap buffer overflow
3. Stack buffer overflow
4. Global buffer overflow
5. Use after return
6. Use after the scope
7. Initialization order bugs
8. Memory leaks
- How I did it
By adding new ENABLE_ASAN configuration option.
- How to verify it
By default ASAN is disabled and the SONiC image is not affected.
When ASAN is enabled it inspects all allocation, deallocation, and memory usage that the application does in run time. To verify whether the application has memory errors tests that trigger memory usage of the application should be run. Ideally, the whole regression tests should be run. Memory leaks reports will be placed in /var/log/asan/ directory of SONiC host OS.
Signed-off-by: Oleksandr Ivantsiv <oivantsiv@nvidia.com>
- Add INCLUDE_PINS to config to enable/disable container
- Add Docker files and supporting resources
- Add sonic-pins submodule and associated make files
Submission containing materials of a third party:
Copyright Google LLC; Licensed under Apache 2.0
#### Why I did it
Adds P4RT container to SONiC for PINS
The P4RT app is covered by this HLD:
https://github.com/pins/SONiC/blob/master/doc/pins/p4rt_app_hld.md
#### How I did it
Followed the pattern and templates used for other SONiC applications
#### How to verify it
Build SONiC with INCLUDE_P4RT set to "y".
Verify that the resulting build has a container called "p4rt" running.
You can verify that the service is up by running the following command on the SONiC switch:
```bash
sudo netstat -lpnt | grep p4rt
```
You should see the service listening on TCP port 9559.
#### Which release branch to backport (provide reason below if selected)
None
#### Description for the changelog
Build P4RT container for PINS
#### Why I did it
Changes required for feature "Event Driven TechSupport Invocation & CoreDump Mgmt". [HLD](https://github.com/Azure/SONiC/pull/818 )
Requires: https://github.com/Azure/sonic-utilities/pull/1796.
Merging in any order would be fine.
Summary of the changes:
- Added the YANG Models for the new tables introduces as a part of this feature.
- Enhanced init_cfg.json with the default config required
- Added a compile Time flag which enables/disables the config required for this feature inside the init_cfg.json
- Enhanced the supervisor-proc-exit-listener script to populate `<feature>:<critical_proc> = <comm>:<pid>` info in the STATE_DB when it observes an proc exit notification for the critical processes running inside the docker.
Linkmgrd monitors link status, mux status, and link state. Has
the link becomes unhealthy, linkmgrd will trigger mux switchover
on a standby ToR ensuring uninterrupted service to servers/blades.
This PR is initial implementation of linkmgrd.
Also, docker-mux container hold packages related to maintaining and managing
mux cable. It currently runs linkmgrd binary that monitor and switches
the mux if needed.
This PR also introduces mux-container and starts linkmgrd as startup when
build is configured with INCLUDE_MUX=y
Edit: linkmgrd PR will follow.
signed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>
Related work items: #2315, #3146150
Why I did it
Pre-requisite: #8269
To be able to generate multi-asic KVM image.
To provide flexibility to generate single asic or both single and multi-asic images.
How I did it
Add a new build param, BUILD_MULTIASIC_KVM, if set to "y", the multi-asic VS target KVM images will be generated. If not, only single asic VS image will be generated.
Make changes to build_image.sh to generate 4-asic and 6-asic KVM images if BUILD_MULTIASIC_KVM parameter is set to y
How to verify it
Generate single-asic VS as currently done, no change in build steps:
make configure PLATFORM=vs
make target/sonic-vs.img.gz - will generate only single asic KVM image.
make BUILD_MULTIASIC_KVM=y target/sonic-vs.img.gz - will generate single asic and multi-asic KVM images.
should generate:
sonic-vs.bin
sonic-vs.img.gz
sonic-4asic-vs.img.gz
sonic-6asic-vs.img.gz
- Why I did it
Make DHCP relay docker an extension. DHCP relay now carries dhcp relay commands CLI plugin and has a complete manifest.
It is installed as extension if INCLUDE_DHCP_REALY is set to y.
DEPENDS on #5939
- How I did it
Modify DHCP relay docker makefile and dockerfile. Make changes to sonic_debian_extension.j2 to install sonic packages.
I moved DHCP related CLI tests from sonic-utilities to DHCP relay docker.
This PR introduces a way to write a plugin as part of docker image and run the tests from cli-plugin-tests directory under docker directory.
The test result is available in target/docker-dhcp-relay.gz.log:
[ REASON ] : target/docker-dhcp-relay.gz does not exist NON-EXISTENT PREREQUISITES: docker-start target/docker-config-engine-buster.gz-load target/python-wheels/sonic_utilities-1.2-py3-none-any.whl-in
stall target/debs/buster/python3-swsscommon_1.0.0_amd64.deb-install
[ FLAGS FILE ] : []
[ FLAGS DEPENDS ] : []
[ FLAGS DIFF ] : []
============================= test session starts ==============================
platform linux -- Python 3.7.3, pytest-3.10.1, py-1.7.0, pluggy-0.8.0 -- /usr/bin/python3
cachedir: .pytest_cache
rootdir: /sonic/dockers/docker-dhcp-relay/cli-plugin-tests, inifile:
plugins: cov-2.6.0
collecting ... collected 10 items
test_config_dhcp_relay.py::TestConfigVlanDhcpRelay::test_plugin_registration PASSED [ 10%]
test_config_dhcp_relay.py::TestConfigVlanDhcpRelay::test_config_vlan_add_dhcp_relay_with_nonexist_vlanid PASSED [ 20%]
test_config_dhcp_relay.py::TestConfigVlanDhcpRelay::test_config_vlan_add_dhcp_relay_with_invalid_vlanid PASSED [ 30%]
test_config_dhcp_relay.py::TestConfigVlanDhcpRelay::test_config_vlan_add_dhcp_relay_with_invalid_ip PASSED [ 40%]
test_config_dhcp_relay.py::TestConfigVlanDhcpRelay::test_config_vlan_add_dhcp_relay_with_exist_ip PASSED [ 50%]
test_config_dhcp_relay.py::TestConfigVlanDhcpRelay::test_config_vlan_add_del_dhcp_relay_dest PASSED [ 60%]
test_config_dhcp_relay.py::TestConfigVlanDhcpRelay::test_config_vlan_remove_nonexist_dhcp_relay_dest PASSED [ 70%]
test_config_dhcp_relay.py::TestConfigVlanDhcpRelay::test_config_vlan_remove_dhcp_relay_dest_with_nonexist_vlanid PASSED [ 80%]
test_show_dhcp_relay.py::TestVlanDhcpRelay::test_plugin_registration PASSED [ 90%]
test_show_dhcp_relay.py::TestVlanDhcpRelay::test_dhcp_relay_column_output PASSED [100%]
=============================== warnings summary ===============================
/usr/local/lib/python3.7/dist-packages/tabulate.py:7
/usr/local/lib/python3.7/dist-packages/tabulate.py:7: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
from collections import namedtuple, Iterable
-- Docs: https://docs.pytest.org/en/latest/warnings.html
==================== 10 passed, 1 warnings in 0.35 seconds =====================
Why I did it
Allows users to host their own local docker registries and utilize them via the REGISTRY_SERVER and REGISTRY_PORT environmental variables
How I did it
Only set REGISTRY_SERVER and REGISTRY_PORT in rules/config if they are unset.
How to verify it
Export environmental variables REGISTRY_SERVER and REGISTRY_PORT to an alternative docker registry. Export the environmental variable ENABLE_DOCKER_BASE_PULL to y.
Ensure the required sonic-slave docker images are not present locally, but are available in the docker registry
Execute make init and make configure
Confirm that the appropriate docker images were pulled from the appropriate docker registry, and not built locally
Why I did it
Quagga is no longer being used. Remove quagga-related code (e.g., docker-fpm-quagga, sonic-quagga, etc.).
How I did it
Remove quagga-related code.
Why I did it
The SONiC switches get their docker images from local repo, populated during install with container images pre-built into SONiC FW. With the introduction of kubernetes, new docker images available in remote repo could be deployed. This requires dockerd to be able to pull images from remote repo.
Depending on the Switch network domain & config, it may or may not be able to reach the remote repo. In the case where remote repo is unreachable, we could potentially make Kubernetes server to also act as http-proxy.
How I did it
When admin explicitly enables, the kubernetes-server could be configured as docker-proxy. But any update to docker-proxy has to be via service-conf file environment variable, implying a "service restart docker" is required. But restart of dockerd is vey expensive, as it would restarts all dockers, including database docker.
To avoid dockerd restart, pre-configure an http_proxy using an unused IP. When k8s server is enabled to act as http-proxy, an IP table entry would be created to direct all traffic to the configured-unused-proxy-ip to the kubernetes-master IP. This way any update to Kubernetes master config would be just manipulating IPTables, which will be transparent to all modules, until dockerd needs to download from remote repo.
How to verify it
Configure a switch such that image repo is unreachable
Pre-configure dockerd with http_proxy.conf using an unused IP (e.g. 172.16.1.1)
Update ctrmgrd.service to invoke ctrmgrd.py with "-p" option.
Configure a k8s server, and deploy an image for feature with set_owner="kube"
Check if switch could successfully download the image or not.
