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Added Daemonset to istio-cni and fixed the script #2782

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merged 2 commits into from
Jul 4, 2024
Merged

Added Daemonset to istio-cni and fixed the script #2782

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931336f
Added Daemonset to istio-cni and fixed the script
biswajit-9776 Jul 2, 2024
904b2a0
Removed --cluster-specific from script in hack
biswajit-9776 Jul 2, 2024
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265 changes: 264 additions & 1 deletion common/istio-cni-1-22/istio-install/base/install.yaml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,17 @@
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
app: istio-cni
install.operator.istio.io/owning-resource: unknown
istio.io/rev: default
operator.istio.io/component: Cni
release: istio
name: istio-cni
namespace: kube-system
---
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
app: istio-ingressgateway
Expand Down Expand Up @@ -31,6 +43,55 @@ metadata:
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
labels:
app: istio-cni
install.operator.istio.io/owning-resource: unknown
istio.io/rev: default
operator.istio.io/component: Cni
release: istio
name: istio-cni
rules:
- apiGroups:
- ''
resources:
- pods
- nodes
- namespaces
verbs:
- get
- list
- watch
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
labels:
app: istio-cni
install.operator.istio.io/owning-resource: unknown
istio.io/rev: default
operator.istio.io/component: Cni
release: istio
name: istio-cni-repair-role
rules:
- apiGroups:
- ''
resources:
- events
verbs:
- create
- patch
- apiGroups:
- ''
resources:
- pods
verbs:
- watch
- get
- list
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
labels:
app: istio-reader
Expand Down Expand Up @@ -367,6 +428,43 @@ rules:
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
app: istio-cni
install.operator.istio.io/owning-resource: unknown
istio.io/rev: default
operator.istio.io/component: Cni
release: istio
name: istio-cni
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: istio-cni
subjects:
- kind: ServiceAccount
name: istio-cni
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
install.operator.istio.io/owning-resource: unknown
istio.io/rev: default
k8s-app: istio-cni-repair
operator.istio.io/component: Cni
name: istio-cni-repair-rolebinding
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: istio-cni-repair-role
subjects:
- kind: ServiceAccount
name: istio-cni
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
app: istio-reader
Expand Down Expand Up @@ -481,6 +579,25 @@ metadata:
namespace: istio-system
---
apiVersion: v1
data:
cni_network_config: "{\n \"cniVersion\": \"0.3.1\",\n \"name\": \"istio-cni\"\
,\n \"type\": \"istio-cni\",\n \"log_level\": \"debug\",\n \"log_uds_address\"\
: \"__LOG_UDS_ADDRESS__\",\n \n \"cni_event_address\": \"__CNI_EVENT_ADDRESS__\"\
,\n \"kubernetes\": {\n \"kubeconfig\": \"__KUBECONFIG_FILEPATH__\",\n \
\ \"cni_bin_dir\": \"/opt/cni/bin\",\n \"exclude_namespaces\": [ \"kube-system\"\
\ ]\n }\n}"
kind: ConfigMap
metadata:
labels:
app: istio-cni
install.operator.istio.io/owning-resource: unknown
istio.io/rev: default
operator.istio.io/component: Cni
release: istio
name: istio-cni-config
namespace: kube-system
---
apiVersion: v1
data:
config: |-
# defaultTemplates defines the default template to use for pods that do not explicitly specify a template
Expand Down Expand Up @@ -2412,7 +2529,7 @@ data:
},
"istio_cni": {
"chained": true,
"enabled": false,
"enabled": true,
"provider": "default"
},
"pilot": {
Expand Down Expand Up @@ -2600,6 +2717,152 @@ webhooks:
sideEffects: None
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
labels:
install.operator.istio.io/owning-resource: unknown
istio.io/rev: default
k8s-app: istio-cni-node
operator.istio.io/component: Cni
release: istio
name: istio-cni-node
namespace: kube-system
spec:
selector:
matchLabels:
k8s-app: istio-cni-node
template:
metadata:
annotations:
prometheus.io/path: /metrics
prometheus.io/port: '15014'
prometheus.io/scrape: 'true'
sidecar.istio.io/inject: 'false'
labels:
istio.io/dataplane-mode: none
k8s-app: istio-cni-node
sidecar.istio.io/inject: 'false'
spec:
containers:
- args:
- --log_output_level=default:info,cni:info
command:
- install-cni
env:
- name: CNI_NETWORK_CONFIG
valueFrom:
configMapKeyRef:
key: cni_network_config
name: istio-cni-config
- name: CNI_NET_DIR
value: /etc/cni/net.d
- name: CHAINED_CNI_PLUGIN
value: 'true'
- name: REPAIR_ENABLED
value: 'true'
- name: REPAIR_NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
- name: REPAIR_LABEL_PODS
value: 'false'
- name: REPAIR_DELETE_PODS
value: 'false'
- name: REPAIR_REPAIR_PODS
value: 'true'
- name: REPAIR_RUN_AS_DAEMON
value: 'true'
- name: REPAIR_SIDECAR_ANNOTATION
value: sidecar.istio.io/status
- name: REPAIR_INIT_CONTAINER_NAME
value: istio-validation
- name: REPAIR_BROKEN_POD_LABEL_KEY
value: cni.istio.io/uninitialized
- name: REPAIR_BROKEN_POD_LABEL_VALUE
value: 'true'
- name: NODE_NAME
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: spec.nodeName
- name: LOG_LEVEL
value: debug
- name: GOMEMLIMIT
valueFrom:
resourceFieldRef:
resource: limits.memory
- name: GOMAXPROCS
valueFrom:
resourceFieldRef:
resource: limits.cpu
image: docker.io/istio/install-cni:1.22.1
name: install-cni
readinessProbe:
httpGet:
path: /readyz
port: 8000
resources:
requests:
cpu: 100m
memory: 100Mi
securityContext:
capabilities:
add:
- NET_ADMIN
- NET_RAW
- SYS_ADMIN
drop:
- ALL
privileged: true
runAsGroup: 0
runAsNonRoot: false
runAsUser: 0
volumeMounts:
- mountPath: /host/opt/cni/bin
name: cni-bin-dir
- mountPath: /host/proc
name: cni-host-procfs
readOnly: true
- mountPath: /host/etc/cni/net.d
name: cni-net-dir
- mountPath: /var/run/istio-cni
name: cni-socket-dir
nodeSelector:
kubernetes.io/os: linux
priorityClassName: system-node-critical
serviceAccountName: istio-cni
terminationGracePeriodSeconds: 5
tolerations:
- effect: NoSchedule
operator: Exists
- key: CriticalAddonsOnly
operator: Exists
- effect: NoExecute
operator: Exists
volumes:
- hostPath:
path: /opt/cni/bin
name: cni-bin-dir
- hostPath:
path: /proc
type: Directory
name: cni-host-procfs
- hostPath:
path: /etc/cni/net.d
name: cni-net-dir
- hostPath:
path: /var/run/istio-cni
name: cni-socket-dir
- hostPath:
path: /var/run/netns
type: DirectoryOrCreate
name: cni-netns-dir
updateStrategy:
rollingUpdate:
maxUnavailable: 1
type: RollingUpdate
---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
Expand Down
2 changes: 1 addition & 1 deletion hack/synchronize-istio-cni-manifests.sh
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I think you need to drop --cluster-specific such that the hack script works without a running cluster. Why are you using the default profile in line 66? Isn't there a CNI profile?

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@biswajit-9776 biswajit-9776 Jul 2, 2024 •
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[biswa@fedora bin]$ istioctl profile list
Istio configuration profiles:
    ambient
    default
    demo
    empty
    minimal
    openshift
    openshift-ambient
    preview
    remote
    stable

I don't see it explicitly here and it's default in istio-cni-1-17 README.md:
https://github.com/kubeflow/manifests/tree/v1.8-branch/common/istio-cni-1-17#:~:text=%24%20cd%20%24ISTIO_NEW%0A%24%20istioctl%20profile%20dump%20default%20%3E%20profile.yaml

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@biswajit-9776 biswajit-9776 Jul 2, 2024 •
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Also I found this:
https://istio.io/latest/docs/setup/additional-setup/config-profiles/#:~:text=The%20components%20marked,minimal
Do you think CNI is a component of ambient profile instead of default?

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@juliusvonkohout juliusvonkohout Jul 2, 2024 •
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Yes, maybe it changed recently. Then let's drop only the --cluster-specific and test on your cluster whether it really works.

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@biswajit-9776 biswajit-9776 Jul 2, 2024 •
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I have pushed the commit for the updated script and here are the cluster resources:

[biswa@fedora manifests]$ kubectl get daemonsets -n kube-system
NAME             DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR            AGE
istio-cni-node   3         3         3       3            3           kubernetes.io/os=linux   103s
kindnet          3         3         3       3            3           kubernetes.io/os=linux   2m29s
kube-proxy       3         3         3       3            3           kubernetes.io/os=linux   2m30s

I also see 3 healthy istio-cni pods in kube-system namespace in each cluster node:

[biswa@fedora manifests]$ kubectl get pods -n kube-system
NAME                                         READY   STATUS    RESTARTS   AGE
coredns-76f75df574-db5lj                     1/1     Running   0          3m57s
coredns-76f75df574-pdml9                     1/1     Running   0          3m57s
etcd-kind-control-plane                      1/1     Running   0          4m12s
istio-cni-node-28r44                         1/1     Running   0          3m25s
istio-cni-node-rpx22                         1/1     Running   0          3m25s
istio-cni-node-tlg2b                         1/1     Running   0          3m25s
kindnet-bmfbv                                1/1     Running   0          3m57s
kindnet-mk64l                                1/1     Running   0          3m51s
kindnet-pjz6s                                1/1     Running   0          3m52s
kube-apiserver-kind-control-plane            1/1     Running   0          4m12s
kube-controller-manager-kind-control-plane   1/1     Running   0          4m12s
kube-proxy-k5rcg                             1/1     Running   0          3m51s
kube-proxy-qkbk7                             1/1     Running   0          3m57s
kube-proxy-zjvpn                             1/1     Running   0          3m52s
kube-scheduler-kind-control-plane            1/1     Running   0          4m12s

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Do you think we should maybe check if the ip tables are modified?

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Yes, please check a few initcontainers

Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ $ISTIOCTL profile dump default > profile.yaml

# cd $ISTIO_NEW
# export PATH="$MANIFESTS_DIR/scripts:$PATH"
$ISTIOCTL manifest generate -f profile.yaml -f profile-overlay.yaml > dump.yaml
$ISTIOCTL manifest generate --cluster-specific -f profile.yaml -f profile-overlay.yaml --set components.cni.enabled=true --set components.cni.namespace=kube-system > dump.yaml
./split-istio-packages -f dump.yaml
mv $ISTIO_NEW/crd.yaml $ISTIO_NEW/istio-crds/base
mv $ISTIO_NEW/install.yaml $ISTIO_NEW/istio-install/base
Expand Down
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