Helm Charts to Deploy VOLTHA 2.x¶
This repository defines Kubernetes Helm charts that can be used to deploy a VOLTHA instance. More information and documentation can be found in the voltha docs.
Installing charts¶
To deploy VOLTHA a Kubernetes environment is required. There are many mechanisms to deploy a Kubernetes environment and how to do so is out of scope for this project. A Simple search on the Internet will lead to the many possibilities.
In addition to a base Kubernetes in order to pass traffic to an OLT additional
services that are external to VOLTHA are required, such as an OpenFlow
Controller with applications to support authentication (EAPOL) and IP address
allocation (DHCP) as examplified by the SEBA
Project.
Example deployment¶
The following describes how to deploy VOLTHA.
Prerequisites¶
To use the charts for VOLTHA the following Helm repositories should be added to your helm environment:
helm repo add onf https://charts.opencord.org
helm repo update
Installing VOLTHA infrastructure¶
VOLTHA relies to a set of infrastructure components (ONOS, Kafka, ETCD, …) that
can be installed via the voltha-infra helm chart:
helm upgrade --install --create-namespace -n infra voltha-infra onf/voltha-infra
By default the voltha-infra helm chart will install one instance of each component,
but that can be customized via a custom value file or via flags, eg:
helm upgrade --install --create-namespace -n infra voltha-infra onf/voltha-infra \
--set onos-classic.replicas=3,onos-classic.atomix.replicas=3 \
--set kafka.replicaCount=3,kafka.zookeeper.replicaCount=3 \
--set etcd.statefulset.replicaCount=3
To deploy a released version of the voltha-infra chart you can specify the --version in the command.
As an example to deploy the infrastructure for the 2.8 LTS release you can use --version 2.8.0 like:
helm upgrade --install --create-namespace -n infra --version 2.8.0 voltha-infra onf/voltha-infra
Accessing the ONOS Cli and API¶
In order to access the ONOS CLI you need to expose the ONOS SSH port:
kubectl -n infra port-forward --address 0.0.0.0 svc/voltha-infra-onos-classic-hs 8101:8101
Once that is done you can ssh into ONOS by:
ssh karaf@127.0.0.1 -p 8101
To access the ONOS Rest API and GUI you need to expose:
kubectl -n infra port-forward --address 0.0.0.0 svc/voltha-infra-onos-classic-hs 8181:8181
Customizing the ONOS configuration¶
The ONOS configuration is defined in two separate variables in the value file:
onos-classic.config.netcfg: multiline text (json)onos-classic.config.componentConfig: yaml list of component name and multiline text
Being the content of the configuration multiline text is not possible to override the configuration via --set it’s
necessary to create a custom value file with your content and install the chart with:
helm upgrade --install --create-namespace -n infra voltha-infra onf/voltha-infra -f myfile.yaml
Support for logging and tracing (optional)¶
VOLTHA comes with support for Jaeger and EFK (Elastic, Fluentd, Kibana) integration. In order to deploy those components together with the infrastructure add these flags to the command to install the VOLTHA infrastructure:
helm upgrade --install --create-namespace -n infra voltha-infra onf/voltha-infra \
--set voltha-tracing.enabled=true \
--set efk.enabled=true
Once kibana is running execute this command to properly configure it:
curl -v -X POST -H Content-type:application/json -H kbn-xsrf:true http://localhost:5601/api/saved_objects/index-pattern/logst* -d '{"attributes":{"title":"logst*","timeFieldName":"@timestamp"}}'
NOTE In order to send a request to
kibanayou need to expose the port withkubectl port-forward -n infra --address 0.0.0.0 svc/voltha-infra-kibana 5601
Deploy VOLTHA¶
VOLTHA encompass multiple components that work together to manage OLT devices.
Such group of component is known as a stack and is composed by:
VOLTHA core
OfAgent (OpenFlow Agent)
OLT Adapter
ONU Adapter
To deploy a VOLTHA stack with the opensource adapters (OpenOLT and OpenONU) you can use the voltha-stack chart:
helm upgrade --install --create-namespace \
-n voltha voltha onf/voltha-stack \
--set global.stack_name=voltha \
--set global.voltha_infra_name=voltha-infra \
--set global.voltha_infra_namespace=infra
We suggest to keep VOLTHA separated by deploying them in different namespaces. For example to install a second VOLTHA stack do:
helm upgrade --install --create-namespace \ -n voltha2 voltha2 onf/voltha-stack \ --set global.stack_name=voltha2 \ --set global.voltha_infra_name=voltha-infra \ --set global.voltha_infra_namespace=infra
If you add a different number of ONOS you need also to tell the ofagent to connect to all of them
by adding it to the voltha-stack command. The following is an example for 3 ONOS instances.
helm upgrade --install --create-namespace \
-n voltha voltha onf/voltha-stack \
--set global.stack_name=voltha \
--set global.voltha_infra_name=voltha-infra \
--set global.voltha_infra_namespace=infra \
--set voltha.onos_classic.replicas=3
To deploy a released version of the voltha-stack chart you can specify the --version in the command.
As an example to deploy VOLTHA 2.8 LTS release you can use --version 2.8.0 like:
helm upgrade --install --create-namespace \
-n voltha --version 2.8.0 voltha onf/voltha-stack \
--set global.stack_name=voltha \
--set global.voltha_infra_name=voltha-infra \
--set global.voltha_infra_namespace=infra
Enable tracing in VOLTHA (optional)¶
To enable tracing across the VOLTHA components add --set global.tracing.enabled=true to the install command, for example:
helm upgrade --install --create-namespace \
-n voltha voltha onf/voltha-stack \
--set global.stack_name=voltha \
--set global.voltha_infra_name=voltha-infra \
--set global.voltha_infra_namespace=infra \
--set global.tracing.enabled=true
NOTE that the
Jaegerpod must be up and running before the VOLTHA stack starts in order for the components to register.
Enable log correlation in VOLTHA (optional)¶
To enable log correlation across the VOLTHA components add --set global.log_correlation.enabled=true to the install command, for example:
helm upgrade --install --create-namespace \
-n voltha voltha onf/voltha-stack \
--set global.stack_name=voltha \
--set global.voltha_infra_name=voltha-infra \
--set global.voltha_infra_namespace=infra \
--set global.log_correlation.enabled=true
Use the OpenONU golang adapter¶
https://docs.voltha.org/master/voltha-openonu-adapter-go/README.html
Deploy BBSim¶
BBSim is a broadband simulator tool that is used as an OpenOLT compatible device in emulated environments.
In order to install a single BBSim instance to test VOLTHA, you can use the BBSim helm chart:
helm upgrade --install -n voltha bbsim0 onf/bbsim --set olt_id=10
While it’s not mandatory to install BBSim in the same namespace as the VOLTHA stack it’s advised to do so to make explicit which stack is controlling it.
Installing and Configuring voltctl¶
voltctl is a replacement for the
voltha-cli container in VOLTHA that provides access to the VOLTHA CLI when a
user connects to the container via SSH. voltctl provides a use model
similar to docker, etcdctl, or kubectl for VOLTHA.
As voltctl is a binary executable as opposed to a Docker container it must be
installed separately onto the machine(s) on which it is to be run. The Release
Page for voltctl maintains of
pre-built binaries that can be installed. The following is an example of how,
in the example environment, voltctl can be installed with bash completion:
HOSTOS="$(uname -s | tr "[:upper:]" "[:lower:"])"
HOSTARCH="$(uname -m | tr "[:upper:]" "[:lower:"])"
if [ "$HOSTARCH" == "x86_64" ]; then
HOSTARCH="amd64"
fi
sudo wget https://github.com/opencord/voltctl/releases/download/v1.7.4/voltctl-1.7.4-$HOSTOS-$HOSTARCH -O /usr/local/bin/voltctl
sudo chmod +x /usr/local/bin/voltctl
source <(voltctl completion bash)
If you are exposing the voltha-api service on 127.0.0.1:55555 as per the examples in this guide there is no need to configure
voltctl, if you are exposing the service on a different port/IP you configure voltctl with:
voltctl -s <voltha-api-ip>:<voltha-api-port> config > $HOME/.volt/config
Deploying a different workflow¶
If you want to deploy VOLTHA with the appropriate configuration for the dt or tt worflow two example files are provided in the ./examples folder.
For you convenience here are the commands to deploy those workflows:
DT
helm upgrade --install -n infra voltha-infra onf/voltha-infra -f examples/dt-values.yaml
helm upgrade --install -n voltha bbsim0 onf/bbsim --set olt_id=10 -f examples/dt-values.yaml
helm upgrade --install --create-namespace -n voltha voltha onf/voltha-stack --set global.stack_name=voltha --set voltha_infra_name=voltha-infra --set voltha_infra_namespace=infra
DT-FTTB
helm upgrade --install -n infra voltha-infra onf/voltha-infra -f examples/dt-fttb-values.yaml
helm upgrade --install -n voltha bbsim0 onf/bbsim --set olt_id=10 -f examples/dt-fttb-values.yaml
helm upgrade --install --create-namespace -n voltha voltha onf/voltha-stack --set global.stack_name=voltha --set voltha_infra_name=voltha-infra --set voltha_infra_namespace=infra
TT
helm upgrade --install -n infra voltha-infra onf/voltha-infra -f examples/tt-values.yaml
helm upgrade --install -n voltha bbsim0 onf/bbsim --set olt_id=10 -f examples/tt-values.yaml
helm upgrade --install --create-namespace -n voltha voltha onf/voltha-stack --set global.stack_name=voltha --set voltha_infra_name=voltha-infra --set voltha_infra_namespace=infra
TT-MacLearner
helm upgrade --install -n infra voltha-infra onf/voltha-infra -f examples/tt-maclearner-values.yaml
helm upgrade --install -n voltha bbsim0 onf/bbsim --set olt_id=10 -f examples/tt-maclearner-values.yaml
helm upgrade --install --create-namespace -n voltha voltha onf/voltha-stack --set global.stack_name=voltha --set voltha_infra_name=voltha-infra --set voltha_infra_namespace=infra
Using an ingress controller¶
A process to expose the VOLTHA API external to the Kubernetes cluster was described
using the port-forward option from the kubectl command line tool. This mechanism,
while convenient, is not recommended for a production deployment. For a production
deployment a Kubernetes Ingress Controller is recommended.
There are many choices when deploying an ingress controller including open source and commercial options. This document does not recommend or require a specific ingress controller, but it is important to note that VOLTHA has only been tested using the NGINX Ingress Controller and thus examples for Kubernetes manifests are offered in that context.
To deploy the NGINX ingress controller please see the instructions on the NGINX site. For instructions on deploying an ingress controller when using a kind cluster, as is common for VOLTHA development, please see the instructions on the kind site.
VOLTHA Helm Charts¶
The VOLTHA Helm charts were updated to deploy Ingress resources for the etcd and VOLTHA API services. By default these Ingress resources are disabled and not deployed.
By default the Ingress resources are defined without a host option. This
is convenient when running a single stack but is not sufficient when
running multiple stacks and enabling external access to both stacks through
the ingress controller.
When using multiple stacks and an Ingress controller virtual hosts will be
required to differentiate the stacks and direct API requests to the correct
service. If --set voltha.ingress.enableVirtualHosts=true is used when
installing the voltha stack then a virtual host will be defined using
<stack-name>.voltha.local. In order to use this virtual host this virtual
host name will need to resolve to the IP address of your Ingress controller.
To include the Ingress resources when deploying VOLTHA the following values need to be set:
When Installing Infra¶
--set etcd.ingress.enabled=true
When Installing the VOLTHA Stack¶
--set voltha.ingress.enabled=true
Usage with voltctl¶
Once the Ingress resources are defined voltctl should be able to access the
VOLTHA deployment without having to run kubectl port-forward commands for
each specific service. The configuration to voltctl to utilize the ingress
controller can be specified either via the command line options or via the
voltctl configuration file (default ~/.volt/config).
The important settings are
NOTE: Note hostname and port will vary depending on how you deploy as
well as how the Ingress controller is accessed from outside the cluster.
If you are deploying VOLTHA locally edit your /etc/hosts file adding at the end
the same hostname you specified in the voltctl config,
as an example 127.0.0.1 voltha.voltha.com
--server/server- the value of the external IP address of the ingress controller and the port on which it is listening (ex:localhost:443orvoltha.voltha.com:30474).--kvstore/kvstore- the value of the external IP address of the ingress controller and the point on which it is listening (ex:localhost:443)--tls/tls.useTls- indicates that TLS should be used when communicating through the ingress controller, which is required for the NGINX ingress controller (ex:true)
CLI example:
voltctl --server=voltha.voltha.com:443 --kvstore=localhost:443 --tls version
voltctl configuration file example:
server: voltha.example.com:443
kafka: localhost:443
kvstore: localhost:443
tls:
useTls: true
caCert: ""
cert: ""
key: ""
verify: false
grpc:
timeout: 5m0s
maxCallRecvMsgSize: 4M
kvstoreconfig:
timeout: 5s
Ingress Controller References¶
Post installation¶
Ok, now I have VOLTHA installed and everything is running. What can I do with it?
Sanity Checks¶
As first make sure that all components are running correctly:
$ kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
infra bbsim-sadis-server-6fcbdf9bd8-s7srz 1/1 Running 0 14m
infra elasticsearch-master-0 1/1 Running 0 14m
infra voltha-infra-etcd-0 1/1 Running 0 14m
infra voltha-infra-fluentd-elasticsearch-9df8b 1/1 Running 0 14m
infra voltha-infra-fluentd-elasticsearch-rgbvb 1/1 Running 0 14m
infra voltha-infra-fluentd-elasticsearch-vfrcg 1/1 Running 0 14m
infra voltha-infra-freeradius-7cbcdc66f-fhlt6 1/1 Running 0 14m
infra voltha-infra-kafka-0 1/1 Running 0 14m
infra voltha-infra-kibana-6cc8b8f779-7tlvp 1/1 Running 0 14m
infra voltha-infra-onos-classic-0 1/1 Running 0 14m
infra voltha-infra-voltha-infra-onos-config-loader-whdtz 0/1 Completed 3 14m
infra voltha-infra-voltha-tracing-jaeger-7fffb6cdf6-l5r8s 1/1 Running 0 14m
infra voltha-infra-zookeeper-0 1/1 Running 0 14m
voltha bbsim0-6f9584b4dd-txtj4 1/1 Running 0 66s
voltha voltha-voltha-adapter-openolt-5b5844b5b6-htlvp 1/1 Running 0 91s
voltha voltha-voltha-adapter-openonu-85749df5fc-n5kdd 1/1 Running 0 91s
voltha voltha-voltha-ofagent-5b5dc9b7b5-htxt6 1/1 Running 0 91s
voltha voltha-voltha-rw-core-7d69cb4567-9cn2n 1/1 Running 0 91s
Note that is completely fine if the
onos-config-loaderpod restarts a few times, it is a job that loads configuration into ONOS and will fail until ONOS is ready to accept the configuration.
Once all the kubernetes pods are in Ready and Running state make sure the adapter registered with the core.
In order to use voltctl you need to expose the voltha-api service:
kubectl -n voltha port-forward --address 0.0.0.0 svc/voltha-voltha-api 55555
If you have deployed multiple stacks you need to change the
port-forwardcommand to connect to the stack you want to operate, eg:kubectl -n voltha2 port-forward --address 0.0.0.0 svc/voltha2-voltha-api 55555
Once that is done you can query rw-core for a list of adapters:
$ voltctl adapter list
ID VENDOR TYPE ENDPOINT VERSION CURRENTREPLICA TOTALREPLICAS LASTCOMMUNICATION
brcm_openomci_onu_1 VOLTHA OpenONUGo brcm_openomci_onu voltha_brcm_openomci_onu unknown-version 1 1
openolt_1 VOLTHA OpenOLT openolt voltha_openolt 3.0.2 1 1
Provisioning an OLT¶
Once you completed the Sanity Checks you can provision an OLT.
We suggest to start with BBSim (see above for installation instructions).
To create and enable the OLT device in VOLTHA you can use these voltctl commands:
voltctl device create -t openolt -H bbsim0.voltha.svc:50060
voltctl device list --filter Type~openolt -q | xargs voltctl device enable
Once the OLT device is enabled you will see that an emulated ONU is reported to VOLTHA:
$ voltctl device list
ID TYPE ROOT PARENTID SERIALNUMBER ADMINSTATE OPERSTATUS CONNECTSTATUS REASON
42b04dfc-a253-46a0-8b96-da0551648fd5 brcm_openomci_onu false 92a67593-06fa-4fad-87cb-b8befab90a56 BBSM00000001 ENABLED ACTIVE REACHABLE initial-mib-downloaded
92a67593-06fa-4fad-87cb-b8befab90a56 openolt true b367cec6-a771-417a-94a7-8b8922fac587 BBSIM_OLT_0 ENABLED ACTIVE REACHABLE
Running the sanity test (optional)¶
If you want to run the sanity-test you can:
git clone https://github.com/opencord/voltha-system-tests.git && cd voltha-system-tests
export KUBECONFIG="$(k3d kubeconfig write voltha-dev)" # or you KUBECONFIG file
mkdir -p ~/.volt
voltctl config > ~/.volt/config
export VOLTCONFIG="~/.volt/config"
make sanity-kind
This assumes that both the
onos-ssh,onos-restandvoltha-apiports are forwarded on the host and bbsim was installed withhelm install -n voltha bbsim0 onf/bbsim --set olt_id=10.
Remove VOLTHA from your cluster¶
NOTE that this is not required as part of your development loop. In that case you should be able to simply upgrade the component you are working on (see next section).
If you need to completely uninstall everything that you installed following this guide, you can simply remove the installed helm charts:
helm del -n voltha voltha bbsim0
helm del -n infra voltha-infra
If you are using the bbsim-sadis-server component as well then remember to remove the kube-config configmap as well:
kubectl delete cm -n infra kube-config
Develop and test for VOLTHA¶
NOTE that this section is intended for development purposes, it’s not a guide for in service software upgrade.
Develop with latest (master) code¶
The voltha-infra and voltha-stack charts pull the referenced version of every component, if your charts are up to date
that will be the latest released one.
If for your development and testing you’d like to have all the master of each component, independently if that has
been officially tagged and release there is a provided dev-values.yaml. You can use it for the a voltha-stack like so:
helm upgrade --install --create-namespace \
-n voltha voltha onf/voltha-stack \
--set global.stack_name=voltha \
--set voltha_infra_name=voltha-infra \
--set voltha_infra_namespace=infra \
-f examples/dev-values.yaml
After the feature you are working on is released by modifying the VERSION file and removing -dev you
can remove the dev-values.yaml file from your helm command.
Build a custom container¶
When you have made a change to a component in VOLTHA and you need to test it the first step is to build a custom
docker image. Every VOLTHA component has a make target called docker-build that builds the docker image with the
code in the local folder, e.g.:
DOCKER_REGISTRY="voltha-test/" DOCKER_TAG="custom-feature" make docker-build
this generates the docker image for that repo, e.g. voltha-test/voltha-openonu-adapter-go:custom-feature
(Up)load the custom container¶
Now that you have the custom image with your changes you have to make the image available to your k8s cluster.
If you are developing locally please load the image into your cluster of choice via the specific command
(e.g. kind load docker-image).
If your cluster is remote, you want to share your image with others or test on Jenkins
every VOLTHA component has a make target called docker-push that pushes the docker image to the registry
you specify, e.g.
DOCKER_REGISTRY="voltha-test/" DOCKER_TAG="custom-feature" make docker-push
Upgrade a component or use a custom image¶
If you want to upgrade a component within a VOLTHA stack or use the custom built image you just created,
you can use the same helm upgrade command as per the
installation guide while providing a new image for one of the component, via custom helm flags.
The following is an example for the openonu adapter go with the image we built during previous steps:
--set voltha-adapter-openonu.images.adapter_open_onu_go.repository=voltha-test/voltha-openonu-adapter-go \
--set voltha-adapter-openonu.images.adapter_open_onu_go.tag=custom-feature
A full command looks like the following:
helm upgrade --install --create-namespace \
-n voltha voltha onf/voltha-stack \
--set global.stack_name=voltha \
--set voltha_infra_name=voltha-infra \
--set voltha_infra_namespace=infra \
--set voltha-adapter-openonu.images.adapter_open_onu_go.repository=voltha-test/voltha-openonu-adapter-go \
--set voltha-adapter-openonu.images.adapter_open_onu_go.tag=custom-feature
If as part of your development process you have published a new image with the same tag you can force its download simply by restarting the pod, for example:
kubectl delete pod -n voltha $(kubectl get pods -n voltha | grep openonu | awk '{print $1}')
In order for this to work the
imagePullPolicyhas to be set toAlways.
Test changes to a chart¶
If you are working on an helm chart you can install a stack omitting that component, and then use the local copy of your chart to install it, eg:
helm upgrade --install --create-namespace \
-n voltha voltha onf/voltha-stack \
--set global.stack_name=voltha \
--set voltha_infra_name=voltha-infra \
--set voltha_infra_namespace=infra \
--set voltha-adapter-openonu.enabled=false
helm upgrade --install --create-namespace \
-n voltha opeonu-adapter voltha-adapter-openonu \
--set global.stack_name=voltha \
--set adapter_open_onu.kv_store_data_prefix=service/voltha/voltha_voltha \
--set adapter_open_onu.topics.core_topic=voltha_voltha_rwcore \
--set adapter_open_onu.topics.adapter_open_onu_topic=voltha_voltha_brcm_openomci_onu \
--set services.kafka.adapter.service=voltha-infra-kafka.infra.svc \
--set services.kafka.cluster.service=voltha-infra-kafka.infra.svc \
--set services.etcd.service=voltha-infra-etcd.infra.svc
Known issues¶
Known VOLTHA issues are tracked in JIRA. Issues that may specifically be observed, or at the very least were discovered, in this environment can be found in JIRA via a JIRA Issue Search.
Pre-patchset submission Checks¶
On patchset submission, jobs are run in Jenkins that validate the correctness of the helm charts.
The code for these jobs can be found in helm-repo-tools
The two scripts that should be run to test are:
helmlint.sh(make lint-helm)chart_version_check.sh(make lint-chart)