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cse_config.sh
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cse_config.sh
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#!/bin/bash
NODE_INDEX=$(hostname | tail -c 2)
NODE_NAME=$(hostname)
KUBECTL="/usr/local/bin/kubectl --kubeconfig=/home/$ADMINUSER/.kube/config"
ADDONS_DIR=/etc/kubernetes/addons
POD_SECURITY_POLICY_SPEC=$ADDONS_DIR/pod-security-policy.yaml
ADDON_MANAGER_SPEC=/etc/kubernetes/manifests/kube-addon-manager.yaml
GET_KUBELET_LOGS="journalctl -u kubelet --no-pager"
systemctlEnableAndStart() {
local ret
systemctl_restart 100 5 30 $1
ret=$?
systemctl status $1 --no-pager -l >/var/log/azure/$1-status.log
if [ $ret -ne 0 ]; then
return 1
fi
if ! retrycmd 120 5 25 systemctl enable $1; then
return 1
fi
}
systemctlEtcd() {
for i in $(seq 1 60); do
timeout 30 systemctl daemon-reload
timeout 30 systemctl restart etcd && break ||
if [ $i -eq 60 ]; then
return 1
else
sleep 5
fi
done
if ! retrycmd 120 5 25 systemctl enable etcd; then
return 1
fi
}
configureAdminUser(){
chage -E -1 -I -1 -m 0 -M 99999 "${ADMINUSER}"
chage -l "${ADMINUSER}"
}
configureEtcdUser(){
useradd -U etcd
chage -E -1 -I -1 -m 0 -M 99999 etcd
chage -l etcd
id etcd
}
configureSecrets(){
local apiserver_key="/etc/kubernetes/certs/apiserver.key" ca_key="/etc/kubernetes/certs/ca.key" etcdserver_key="/etc/kubernetes/certs/etcdserver.key"
touch "${apiserver_key}"
touch "${ca_key}"
touch "${etcdserver_key}"
if [[ -z ${COSMOS_URI} ]]; then
chown etcd:etcd "${etcdserver_key}"
fi
local etcdclient_key="/etc/kubernetes/certs/etcdclient.key" etcdpeer_key="/etc/kubernetes/certs/etcdpeer${NODE_INDEX}.key"
touch "${etcdclient_key}"
touch "${etcdpeer_key}"
if [[ -z ${COSMOS_URI} ]]; then
chown etcd:etcd "${etcdpeer_key}"
fi
chmod 0600 "${apiserver_key}" "${ca_key}" "${etcdserver_key}" "${etcdclient_key}" "${etcdpeer_key}"
chown root:root "${apiserver_key}" "${ca_key}" "${etcdclient_key}"
local etcdserver_crt="/etc/kubernetes/certs/etcdserver.crt" etcdclient_crt="/etc/kubernetes/certs/etcdclient.crt" etcdpeer_crt="/etc/kubernetes/certs/etcdpeer${NODE_INDEX}.crt"
touch "${etcdserver_crt}"
touch "${etcdclient_crt}"
touch "${etcdpeer_crt}"
chmod 0644 "${etcdserver_crt}" "${etcdclient_crt}" "${etcdpeer_crt}"
chown root:root "${etcdserver_crt}" "${etcdclient_crt}" "${etcdpeer_crt}"
set +x
echo "${APISERVER_PRIVATE_KEY}" | base64 --decode >"${apiserver_key}"
echo "${CA_PRIVATE_KEY}" | base64 --decode >"${ca_key}"
echo "${ETCD_SERVER_PRIVATE_KEY}" | base64 --decode >"${etcdserver_key}"
echo "${ETCD_CLIENT_PRIVATE_KEY}" | base64 --decode >"${etcdclient_key}"
echo "${ETCD_PEER_KEY}" | base64 --decode >"${etcdpeer_key}"
echo "${ETCD_SERVER_CERTIFICATE}" | base64 --decode >"${etcdserver_crt}"
echo "${ETCD_CLIENT_CERTIFICATE}" | base64 --decode >"${etcdclient_crt}"
echo "${ETCD_PEER_CERT}" | base64 --decode >"${etcdpeer_crt}"
}
configureEtcd() {
set -x
local ret f=/opt/azure/containers/setup-etcd.sh etcd_peer_url="https://${PRIVATE_IP}:2380"
wait_for_file 1200 1 $f || exit {{GetCSEErrorCode "ERR_ETCD_CONFIG_FAIL"}}
$f >/opt/azure/containers/setup-etcd.log 2>&1
ret=$?
if [ $ret -ne 0 ]; then
exit $ret
fi
if [[ -z ${ETCDCTL_ENDPOINTS} ]]; then
{{/* Variables necessary for etcdctl are not present */}}
{{/* Must pull them from /etc/environment */}}
for entry in $(cat /etc/environment); do
export ${entry}
done
fi
chown -R etcd:etcd /var/lib/etcddisk
systemctlEtcd || exit {{GetCSEErrorCode "ERR_ETCD_START_TIMEOUT"}}
for i in $(seq 1 600); do
MEMBER="$(sudo -E etcdctl member list | grep -E ${NODE_NAME} | cut -d':' -f 1)"
if [ "$MEMBER" != "" ]; then
break
else
sleep 1
fi
done
retrycmd 120 5 25 sudo -E etcdctl member update $MEMBER ${etcd_peer_url} || exit {{GetCSEErrorCode "ERR_ETCD_CONFIG_FAIL"}}
}
configureChrony() {
sed -i "s/makestep.*/makestep 1.0 -1/g" /etc/chrony/chrony.conf
echo "refclock PHC /dev/ptp0 poll 3 dpoll -2 offset 0" >> /etc/chrony/chrony.conf
}
ensureChrony() {
systemctlEnableAndStart chrony || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
}
disable1804SystemdResolved() {
{{/* Ignoring systemd-resolved query service but using its resolv.conf file */}}
{{/* This is the simplest approach to workaround resolved issues without completely uninstall it */}}
[ -f /run/systemd/resolve/resolv.conf ] && sudo ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf
}
ensureRPC() {
systemctlEnableAndStart rpcbind || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
systemctlEnableAndStart rpc-statd || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
}
ensureAuditD() {
if [[ ${AUDITD_ENABLED} == true ]]; then
systemctlEnableAndStart auditd || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
else
apt_get_purge auditd mlocate &
fi
}
ensureCron() {
local s=/lib/systemd/system/cron.service
if [[ -f ${s} ]]; then
if ! grep -q 'Restart=' ${s}; then
sed -i 's/\[Service\]/[Service]\nRestart=always/' ${s}
systemctlEnableAndStart cron
fi
fi
}
generateAggregatedAPICerts() {
local f=/etc/kubernetes/generate-proxy-certs.sh
wait_for_file 1200 1 $f || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
$f
}
configureKubeletServerCert() {
local kubeletserver_key="/etc/kubernetes/certs/kubeletserver.key" kubeletserver_crt="/etc/kubernetes/certs/kubeletserver.crt"
openssl genrsa -out $kubeletserver_key 2048
openssl req -new -x509 -days 7300 -key $kubeletserver_key -out $kubeletserver_crt -subj "/CN=${NODE_NAME}"
}
configureK8s() {
local client_key="/etc/kubernetes/certs/client.key" apiserver_crt="/etc/kubernetes/certs/apiserver.crt" azure_json="/etc/kubernetes/azure.json"
touch "${client_key}"
chmod 0600 "${client_key}"
chown root:root "${client_key}"
if [[ -n ${MASTER_NODE} ]]; then
touch "${apiserver_crt}"
chmod 0644 "${apiserver_crt}"
chown root:root "${apiserver_crt}"
fi
set +x
echo "${KUBELET_PRIVATE_KEY}" | base64 --decode >"${client_key}"
configureKubeletServerCert
if [[ -n ${MASTER_NODE} ]]; then
echo "${APISERVER_PUBLIC_KEY}" | base64 --decode >"${apiserver_crt}"
if [[ ${ENABLE_AGGREGATED_APIS} == True ]]; then
generateAggregatedAPICerts
fi
else
{{- /* If we are a node that does not need azure.json (cloud-init tells us), then return immediately */}}
wait_for_file 1 1 /opt/azure/needs_azure.json || return
fi
touch $azure_json
chmod 0600 $azure_json
chown root:root $azure_json
{{/* Perform the required JSON escaping */}}
local sp_secret=${SERVICE_PRINCIPAL_CLIENT_SECRET//\\/\\\\}
sp_secret=${SERVICE_PRINCIPAL_CLIENT_SECRET//\"/\\\"}
cat <<EOF >"${azure_json}"
{
"cloud":"{{GetTargetEnvironment}}",
"tenantId": "${TENANT_ID}",
"subscriptionId": "${SUBSCRIPTION_ID}",
"aadClientId": "${SERVICE_PRINCIPAL_CLIENT_ID}",
"aadClientSecret": "${sp_secret}",
"resourceGroup": "${RESOURCE_GROUP}",
"location": "${LOCATION}",
"vmType": "${VM_TYPE}",
"subnetName": "${SUBNET}",
"securityGroupName": "${NETWORK_SECURITY_GROUP}",
"vnetName": "${VIRTUAL_NETWORK}",
"vnetResourceGroup": "${VIRTUAL_NETWORK_RESOURCE_GROUP}",
"routeTableName": "${ROUTE_TABLE}",
"primaryAvailabilitySetName": "${PRIMARY_AVAILABILITY_SET}",
"primaryScaleSetName": "${PRIMARY_SCALE_SET}",
"cloudProviderBackoffMode": "${CLOUDPROVIDER_BACKOFF_MODE}",
"cloudProviderBackoff": ${CLOUDPROVIDER_BACKOFF},
"cloudProviderBackoffRetries": ${CLOUDPROVIDER_BACKOFF_RETRIES},
"cloudProviderBackoffExponent": ${CLOUDPROVIDER_BACKOFF_EXPONENT},
"cloudProviderBackoffDuration": ${CLOUDPROVIDER_BACKOFF_DURATION},
"cloudProviderBackoffJitter": ${CLOUDPROVIDER_BACKOFF_JITTER},
"cloudProviderRatelimit": ${CLOUDPROVIDER_RATELIMIT},
"cloudProviderRateLimitQPS": ${CLOUDPROVIDER_RATELIMIT_QPS},
"cloudProviderRateLimitBucket": ${CLOUDPROVIDER_RATELIMIT_BUCKET},
"cloudProviderRatelimitQPSWrite": ${CLOUDPROVIDER_RATELIMIT_QPS_WRITE},
"cloudProviderRatelimitBucketWrite": ${CLOUDPROVIDER_RATELIMIT_BUCKET_WRITE},
"useManagedIdentityExtension": ${USE_MANAGED_IDENTITY_EXTENSION},
"userAssignedIdentityID": "${USER_ASSIGNED_IDENTITY_ID}",
"useInstanceMetadata": ${USE_INSTANCE_METADATA},
"loadBalancerSku": "${LOAD_BALANCER_SKU}",
"disableOutboundSNAT": ${LOAD_BALANCER_DISABLE_OUTBOUND_SNAT},
"excludeMasterFromStandardLB": ${EXCLUDE_MASTER_FROM_STANDARD_LB},
"providerVaultName": "${KMS_PROVIDER_VAULT_NAME}",
"maximumLoadBalancerRuleCount": ${MAXIMUM_LOADBALANCER_RULE_COUNT},
"providerKeyName": "k8s",
"providerKeyVersion": "",
"enableMultipleStandardLoadBalancers": ${ENABLE_MULTIPLE_STANDARD_LOAD_BALANCERS},
"tags": "${TAGS}"
}
EOF
set -x
if [[ ${CLOUDPROVIDER_BACKOFF_MODE} == "v2" ]]; then
sed -i "/cloudProviderBackoffExponent/d" $azure_json
sed -i "/cloudProviderBackoffJitter/d" $azure_json
fi
}
installNetworkPlugin() {
{{- if IsAzureCNI}}
installAzureCNI
{{end}}
installCNI
rm -rf $CNI_DOWNLOADS_DIR &
}
installCNI() {
CNI_TGZ_TMP=${CNI_PLUGINS_URL##*/}
if [[ ! -f "$CNI_DOWNLOADS_DIR/${CNI_TGZ_TMP}" ]]; then
downloadCNI
fi
mkdir -p $CNI_BIN_DIR
tar -xzf "$CNI_DOWNLOADS_DIR/${CNI_TGZ_TMP}" -C $CNI_BIN_DIR
chown -R root:root $CNI_BIN_DIR
chmod -R 755 $CNI_BIN_DIR
}
{{- if IsAzureCNI}}
installAzureCNI() {
CNI_TGZ_TMP=${VNET_CNI_PLUGINS_URL##*/}
if [[ ! -f "$CNI_DOWNLOADS_DIR/${CNI_TGZ_TMP}" ]]; then
downloadAzureCNI
fi
mkdir -p $CNI_CONFIG_DIR
chown -R root:root $CNI_CONFIG_DIR
chmod 755 $CNI_CONFIG_DIR
mkdir -p $CNI_BIN_DIR
tar -xzf "$CNI_DOWNLOADS_DIR/${CNI_TGZ_TMP}" -C $CNI_BIN_DIR
}
{{end}}
configureCNI() {
{{/* needed for the iptables rules to work on bridges */}}
retrycmd 120 5 25 modprobe br_netfilter || exit {{GetCSEErrorCode "ERR_MODPROBE_FAIL"}}
echo -n "br_netfilter" >/etc/modules-load.d/br_netfilter.conf
configureAzureCNI
{{if HasCiliumNetworkPlugin}}
systemctl enable sys-fs-bpf.mount
systemctl restart sys-fs-bpf.mount
touch /var/run/reboot-required
{{end}}
{{- if IsAzureStackCloud}}
if [[ ${NETWORK_PLUGIN} == "azure" ]]; then
{{/* set environment to mas when using Azure CNI on Azure Stack */}}
{{/* shellcheck disable=SC2002,SC2005 */}}
echo $(cat "$CNI_CONFIG_DIR/10-azure.conflist" | jq '.plugins[0].ipam.environment = "mas"') >"$CNI_CONFIG_DIR/10-azure.conflist"
fi
{{end}}
}
configureAzureCNI() {
local tmpDir=$(mktemp -d "$(pwd)/XXX")
if [[ "${NETWORK_PLUGIN}" == "azure" ]]; then
mv $CNI_BIN_DIR/10-azure.conflist $CNI_CONFIG_DIR/
chmod 600 $CNI_CONFIG_DIR/10-azure.conflist
{{- if IsIPv6DualStackFeatureEnabled}}
jq '.plugins[0].ipv6Mode="ipv6nat"' "$CNI_CONFIG_DIR/10-azure.conflist" > $tmpDir/tmp
mv $tmpDir/tmp $CNI_CONFIG_DIR/10-azure.conflist
{{- end}}
if [[ {{GetKubeProxyMode}} == "ipvs" ]]; then
serviceCidrs={{GetServiceCidr}}
jq --arg serviceCidrs $serviceCidrs '.plugins[0]+={serviceCidrs: $serviceCidrs}' "$CNI_CONFIG_DIR/10-azure.conflist" > $tmpDir/tmp
mv $tmpDir/tmp $CNI_CONFIG_DIR/10-azure.conflist
fi
if [[ "${NETWORK_MODE}" == "bridge" ]]; then
jq '.plugins[0].mode="bridge"' "$CNI_CONFIG_DIR/10-azure.conflist" > $tmpDir/tmp
jq '.plugins[0].bridge="azure0"' "$tmpDir/tmp" > $tmpDir/tmp2
mv $tmpDir/tmp2 $CNI_CONFIG_DIR/10-azure.conflist
else
jq '.plugins[0].mode="transparent"' "$CNI_CONFIG_DIR/10-azure.conflist" > $tmpDir/tmp
mv $tmpDir/tmp $CNI_CONFIG_DIR/10-azure.conflist
fi
/sbin/ebtables -t nat --list
fi
rm -Rf $tmpDir
}
enableCRISystemdMonitor() {
wait_for_file 1200 1 /etc/systemd/system/docker-monitor.service || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
systemctlEnableAndStart docker-monitor || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
}
{{- if NeedsContainerd}}
installContainerd() {
removeMoby
local v
v=$(containerd -version | cut -d " " -f 3 | sed 's|v||')
if [[ $v != "${CONTAINERD_VERSION}"* ]]; then
os_lower=$(echo ${OS} | tr '[:upper:]' '[:lower:]')
if [[ ${OS} == "${UBUNTU_OS_NAME}" ]]; then
url_path="${os_lower}/${UBUNTU_RELEASE}"
[[ ${UBUNTU_RELEASE} == "20.04" ]] || url_path+="/multiarch"
url_path+="/prod"
elif [[ ${OS} == "${DEBIAN_OS_NAME}" ]]; then
url_path="${os_lower}/${UBUNTU_RELEASE}/prod"
else
exit 25
fi
removeContainerd
apt_get_update || exit 99
apt_get_install 20 30 120 moby-runc moby-containerd=${CONTAINERD_VERSION}* --allow-downgrades || exit 27
fi
}
ensureContainerd() {
wait_for_file 1200 1 /etc/systemd/system/containerd.service.d/exec_start.conf || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
wait_for_file 1200 1 /etc/containerd/config.toml || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
{{- if HasKubeReservedCgroup}}
wait_for_file 1200 1 /etc/systemd/system/containerd.service.d/kubereserved-slice.conf|| exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
{{- end}}
systemctlEnableAndStart containerd || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
enableCRISystemdMonitor
}
{{end}}
{{- if IsDockerContainerRuntime}}
ensureDocker() {
wait_for_file 1200 1 /etc/systemd/system/docker.service.d/exec_start.conf || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
usermod -aG docker ${ADMINUSER}
if [[ $OS != $FLATCAR_OS_NAME ]]; then
wait_for_file 1200 1 /etc/systemd/system/docker.service.d/clear_mount_propagation_flags.conf || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
fi
{{- if HasKubeReservedCgroup}}
wait_for_file 1200 1 /etc/systemd/system/docker.service.d/kubereserved-slice.conf || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
{{- end}}
local daemon_json=/etc/docker/daemon.json
for i in $(seq 1 1200); do
if [ -s $daemon_json ]; then
jq '.' <$daemon_json && break
fi
if [ $i -eq 1200 ]; then
exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
else
sleep 1
fi
done
systemctlEnableAndStart docker || exit {{GetCSEErrorCode "ERR_DOCKER_START_FAIL"}}
enableCRISystemdMonitor
}
{{end}}
{{- if IsIPv6Enabled}}
ensureDHCPv6() {
if [[ ${UBUNTU_RELEASE} == "16.04" ]]; then
wait_for_file 3600 1 {{GetDHCPv6ServiceCSEScriptFilepath}} || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
wait_for_file 3600 1 {{GetDHCPv6ConfigCSEScriptFilepath}} || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
systemctlEnableAndStart dhcpv6 || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
retrycmd 120 5 25 modprobe ip6_tables || exit {{GetCSEErrorCode "ERR_MODPROBE_FAIL"}}
fi
}
{{end}}
{{- if EnableEncryptionWithExternalKms}}
ensureKMSKeyvaultKey() {
wait_for_file 3600 1 {{GetKMSKeyvaultKeyServiceCSEScriptFilepath}} || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
wait_for_file 3600 1 {{GetKMSKeyvaultKeyCSEScriptFilepath}} || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
systemctlEnableAndStart kms-keyvault-key || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
}
{{end}}
ensureKubelet() {
wait_for_file 1200 1 /etc/sysctl.d/11-aks-engine.conf || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
sysctl_reload 10 5 120 || exit {{GetCSEErrorCode "ERR_SYSCTL_RELOAD"}}
wait_for_file 1200 1 /etc/default/kubelet || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
wait_for_file 1200 1 /var/lib/kubelet/kubeconfig || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
if [[ -n ${MASTER_NODE} ]]; then
{{- if IsMasterVirtualMachineScaleSets}}
sed -i "s|<SERVERIP>|https://$PRIVATE_IP:443|g" "/var/lib/kubelet/kubeconfig" || exit {{GetCSEErrorCode "ERR_KUBELET_START_FAIL"}}
{{- end}}
local f=/etc/kubernetes/manifests/kube-apiserver.yaml
wait_for_file 1200 1 $f || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
sed -i "s|<advertiseAddr>|$PRIVATE_IP|g" $f
fi
wait_for_file 1200 1 /opt/azure/containers/kubelet.sh || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
{{- if HasKubeReservedCgroup}}
wait_for_file 1200 1 /etc/systemd/system/{{- GetKubeReservedCgroup -}}.slice || exit {{GetCSEErrorCode "ERR_KUBERESERVED_SLICE_SETUP_FAIL"}}
wait_for_file 1200 1 /etc/systemd/system/kubelet.service.d/kubereserved-slice.conf || exit {{GetCSEErrorCode "ERR_KUBELET_SLICE_SETUP_FAIL"}}
{{- end}}
if [[ -n ${MASTER_NODE} ]]; then
systemctlEnableAndStart kubelet || exit {{GetCSEErrorCode "ERR_KUBELET_START_FAIL"}}
else
{{- if not RunUnattendedUpgradesOnBootstrap}}
systemctlEnableAndStart kubelet || exit {{GetCSEErrorCode "ERR_KUBELET_START_FAIL"}}
{{else}}
systemctl_enable 100 5 30 kubelet || exit {{GetCSEErrorCode "ERR_KUBELET_START_FAIL"}}
{{- end}}
fi
{{- if HasKubeletHealthZPort}}
wait_for_file 1200 1 /etc/systemd/system/kubelet-monitor.service || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
if [[ -n ${MASTER_NODE} ]]; then
systemctlEnableAndStart kubelet-monitor || exit {{GetCSEErrorCode "ERR_KUBELET_START_FAIL"}}
else
{{- if not RunUnattendedUpgradesOnBootstrap}}
systemctlEnableAndStart kubelet-monitor || exit {{GetCSEErrorCode "ERR_KUBELET_START_FAIL"}}
{{else}}
systemctl_enable 100 5 30 kubelet-monitor || exit {{GetCSEErrorCode "ERR_KUBELET_START_FAIL"}}
{{- end}}
fi
{{- end}}
if [[ -n ${MASTER_NODE} ]]; then
wait_for_file 1200 1 /etc/systemd/system/apiserver-monitor.service || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
systemctlEnableAndStart apiserver-monitor || exit {{GetCSEErrorCode "ERR_KUBELET_START_FAIL"}}
fi
}
ensureKubeAddonManager() {
{{/* Wait 5 mins for kube-addon-manager to become Ready */}}
if ! retrycmd 60 5 30 ${KUBECTL} wait --for=condition=Ready --timeout=5s -l app=kube-addon-manager po -n kube-system; then
{{/* Restart kubelet if kube-addon-manager is not Ready after 5 mins */}}
systemctl_restart 3 5 30 kubelet
{{/* Wait 5 more mins for kube-addon-manager to become Ready, and then return failure if not */}}
retrycmd 60 5 30 ${KUBECTL} wait --for=condition=Ready --timeout=5s -l app=kube-addon-manager po -n kube-system || exit_cse {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}} $GET_KUBELET_LOGS
fi
}
ensureAddons() {
{{- if IsDashboardAddonEnabled}} {{/* Note: dashboard addon is deprecated */}}
retrycmd 120 5 30 $KUBECTL get namespace kubernetes-dashboard || exit_cse {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}} $GET_KUBELET_LOGS
{{- end}}
{{- if IsAzurePolicyAddonEnabled}}
retrycmd 120 5 30 $KUBECTL get namespace gatekeeper-system || exit_cse {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}} $GET_KUBELET_LOGS
{{- end}}
{{- if not HasCustomPodSecurityPolicy}}
retrycmd 120 5 30 $KUBECTL get podsecuritypolicy privileged restricted || exit_cse {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}} $GET_KUBELET_LOGS
{{- end}}
replaceAddonsInit
rm -Rf ${ADDONS_DIR}/init
ensureKubeAddonManager
{{/* Manually delete any kube-addon-manager pods that point to the init directory */}}
for initPod in $(${KUBECTL} get pod -l app=kube-addon-manager -n kube-system -o json | jq -r '.items[] | select(.spec.containers[0].env[] | select(.value=="/etc/kubernetes/addons/init")) | select(.status.phase=="Running") .metadata.name'); do
retrycmd 120 5 30 ${KUBECTL} delete pod $initPod -n kube-system --force --grace-period 0 || exit_cse {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}} $GET_KUBELET_LOGS
done
{{if HasCiliumNetworkPolicy}}
while [ ! -f /etc/cni/net.d/05-cilium.conf ]; do
sleep 3
done
{{end}}
{{if HasAntreaNetworkPolicy}}
if [[ "${NETWORK_PLUGIN}" = "azure" ]]; then
while ! $(grep -sq "antrea" $CNI_CONFIG_DIR/10-azure.conflist); do
sleep 3
done
else
while [ ! -f $CNI_CONFIG_DIR/10-antrea.conflist ]; do
sleep 3
done
fi
{{end}}
{{if HasFlannelNetworkPlugin}}
while [ ! -f /etc/cni/net.d/10-flannel.conf ]; do
sleep 3
done
{{end}}
}
replaceAddonsInit() {
wait_for_file 1200 1 $ADDON_MANAGER_SPEC || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
cp $ADDON_MANAGER_SPEC /tmp/kube-addon-manager.yaml || exit {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}}
sed -i "s|${ADDONS_DIR}/init|${ADDONS_DIR}|g" /tmp/kube-addon-manager.yaml || exit {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}}
mv /tmp/kube-addon-manager.yaml $ADDON_MANAGER_SPEC || exit {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}}
}
ensureLabelNodes() {
wait_for_file 1200 1 /opt/azure/containers/label-nodes.sh || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
wait_for_file 1200 1 /etc/systemd/system/label-nodes.service || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
systemctlEnableAndStart label-nodes || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
}
{{- if IsAADPodIdentityAddonEnabled}}
ensureTaints() {
wait_for_file 1200 1 /opt/azure/containers/untaint-nodes.sh || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
wait_for_file 1200 1 /etc/systemd/system/untaint-nodes.service || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
systemctlEnableAndStart untaint-nodes || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
}
{{end}}
ensureJournal() {
{
echo "Storage=persistent"
echo "SystemMaxUse=1G"
echo "RuntimeMaxUse=1G"
echo "ForwardToSyslog=yes"
} >>/etc/systemd/journald.conf
systemctlEnableAndStart systemd-journald || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
}
installKubeletAndKubectl() {
local binPath=/usr/local/bin
if [[ $OS == $FLATCAR_OS_NAME ]]; then
binPath=/opt/bin
fi
if [[ ! -f "${binPath}/kubectl-${KUBERNETES_VERSION}" ]] || [[ -n "${CUSTOM_HYPERKUBE_IMAGE}" ]] || [[ -n "${KUBE_BINARY_URL}" ]]; then
if version_gte ${KUBERNETES_VERSION} 1.17; then
extractKubeBinaries
else
if [[ $CONTAINER_RUNTIME == "docker" ]]; then
extractHyperkube "docker"
else
extractHyperkube "img"
fi
fi
fi
mv "${binPath}/kubelet-${KUBERNETES_VERSION}" "${binPath}/kubelet"
mv "${binPath}/kubectl-${KUBERNETES_VERSION}" "${binPath}/kubectl"
chmod a+x ${binPath}/kubelet ${binPath}/kubectl
rm -rf ${binPath}/kubelet-* ${binPath}/kubectl-* /home/hyperkube-downloads &
}
ensureK8sControlPlane() {
if [ "$NO_OUTBOUND" = "true" ]; then
return
fi
retrycmd 120 5 25 $KUBECTL 2>/dev/null cluster-info || exit_cse {{GetCSEErrorCode "ERR_K8S_RUNNING_TIMEOUT"}} $GET_KUBELET_LOGS
}
{{- if IsAzurePolicyAddonEnabled}}
ensureLabelExclusionForAzurePolicyAddon() {
retrycmd 120 5 25 $KUBECTL label ns kube-system control-plane=controller-manager --overwrite 2>/dev/null || exit_cse {{GetCSEErrorCode "ERR_K8S_RUNNING_TIMEOUT"}} $GET_KUBELET_LOGS
}
{{end}}
ensureEtcd() {
local etcd_client_url="https://${PRIVATE_IP}:2379"
retrycmd 120 5 25 curl --cacert /etc/kubernetes/certs/ca.crt --cert /etc/kubernetes/certs/etcdclient.crt --key /etc/kubernetes/certs/etcdclient.key ${etcd_client_url}/v2/machines || exit {{GetCSEErrorCode "ERR_ETCD_RUNNING_TIMEOUT"}}
wait_for_file 1200 1 /etc/systemd/system/etcd-monitor.service || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
systemctlEnableAndStart etcd-monitor || exit {{GetCSEErrorCode "ERR_SYSTEMCTL_START_FAIL"}}
}
createKubeManifestDir() {
mkdir -p /etc/kubernetes/manifests
}
writeKubeConfig() {
local d=/home/$ADMINUSER/.kube
local f=$d/config
{{- if HasBlockOutboundInternet}}
local server=https://localhost
{{else}}
local server=$KUBECONFIG_SERVER
{{- end}}
mkdir -p $d
touch $f
chown $ADMINUSER:$ADMINUSER $d $f
chmod 700 $d
chmod 600 $f
set +x
echo "
---
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: \"$CA_CERTIFICATE\"
server: $server
name: \"$MASTER_FQDN\"
contexts:
- context:
cluster: \"$MASTER_FQDN\"
user: \"$MASTER_FQDN-admin\"
name: \"$MASTER_FQDN\"
current-context: \"$MASTER_FQDN\"
kind: Config
users:
- name: \"$MASTER_FQDN-admin\"
user:
client-certificate-data: \"$KUBECONFIG_CERTIFICATE\"
client-key-data: \"$KUBECONFIG_KEY\"
" >$f
set -x
}
{{- if IsClusterAutoscalerAddonEnabled}}
configClusterAutoscalerAddon() {
local f=$ADDONS_DIR/cluster-autoscaler.yaml
wait_for_file 1200 1 $f || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
sed -i "s|<clientID>|$(echo $SERVICE_PRINCIPAL_CLIENT_ID | base64)|g" $f
sed -i "s|<clientSec>|$(echo $SERVICE_PRINCIPAL_CLIENT_SECRET | base64)|g" $f
sed -i "s|<subID>|$(echo $SUBSCRIPTION_ID | base64)|g" $f
sed -i "s|<tenantID>|$(echo $TENANT_ID | base64)|g" $f
sed -i "s|<rg>|$(echo $RESOURCE_GROUP | base64)|g" $f
}
{{end}}
{{- if IsAzurePolicyAddonEnabled}}
configAzurePolicyAddon() {
sed -i "s|<resourceId>|/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCE_GROUP|g" $ADDONS_DIR/azure-policy-deployment.yaml
}
{{end}}
configAddons() {
{{if IsClusterAutoscalerAddonEnabled}}
if [[ ${CLUSTER_AUTOSCALER_ADDON} == true ]]; then
configClusterAutoscalerAddon
fi
{{end}}
{{if IsAzurePolicyAddonEnabled}}
configAzurePolicyAddon
{{end}}
{{- if and (not HasCustomPodSecurityPolicy) IsPodSecurityPolicyAddonEnabled}}
wait_for_file 1200 1 $POD_SECURITY_POLICY_SPEC || exit {{GetCSEErrorCode "ERR_FILE_WATCH_TIMEOUT"}}
mkdir -p $ADDONS_DIR/init && cp $POD_SECURITY_POLICY_SPEC $ADDONS_DIR/init/ || exit {{GetCSEErrorCode "ERR_ADDONS_START_FAIL"}}
{{- end}}
}
{{- if and HasNSeriesSKU IsNvidiaDevicePluginAddonEnabled}}
{{- /* installNvidiaDrivers is idempotent, it will uninstall itself if it is already installed, and then install anew */}}
installNvidiaDrivers() {
local d="/var/lib/dkms/nvidia/${GPU_DV}" k log_file="/var/log/nvidia-installer-$(date +%s).log"
k=$(uname -r)
if [ -d $d ]; then
dkms remove -m nvidia -v $GPU_DV -k $k
fi
sh $GPU_DEST/nvidia-drivers-$GPU_DV -s -k=$k --log-file-name=$log_file -a --no-drm --dkms --utility-prefix="${GPU_DEST}" --opengl-prefix="${GPU_DEST}"
}
configGPUDrivers() {
rmmod nouveau
echo blacklist nouveau >>/etc/modprobe.d/blacklist.conf
retrycmd_no_stats 120 5 25 update-initramfs -u || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_CONFIG"}}
wait_for_apt_locks
for apt_package in $NVIDIA_PACKAGES; do
dpkg -i ${PERMANENT_CACHE_DIR}${apt_package}* || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_CONFIG"}}
done
dpkg -i ${PERMANENT_CACHE_DIR}nvidia-container-runtime* || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_CONFIG"}}
mkdir -p $GPU_DEST/lib64 $GPU_DEST/overlay-workdir
retrycmd 120 5 25 mount -t overlay -o lowerdir=/usr/lib/x86_64-linux-gnu,upperdir=${GPU_DEST}/lib64,workdir=${GPU_DEST}/overlay-workdir none /usr/lib/x86_64-linux-gnu || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_CONFIG"}}
export -f installNvidiaDrivers
retrycmd 3 1 600 bash -c installNvidiaDrivers || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_START_FAIL"}}
mv ${GPU_DEST}/bin/* /usr/bin
echo "${GPU_DEST}/lib64" >/etc/ld.so.conf.d/nvidia.conf
retrycmd 120 5 25 ldconfig || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_START_FAIL"}}
umount -l /usr/lib/x86_64-linux-gnu
retrycmd 120 5 25 nvidia-modprobe -u -c0 || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_START_FAIL"}}
retrycmd 120 5 25 nvidia-smi || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_START_FAIL"}}
retrycmd 120 5 25 ldconfig || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_START_FAIL"}}
rm -Rf ${PERMANENT_CACHE_DIR}
}
ensureGPUDrivers() {
configGPUDrivers
systemctlEnableAndStart nvidia-modprobe || exit {{GetCSEErrorCode "ERR_GPU_DRIVERS_START_FAIL"}}
}
{{end}}
{{- if HasDCSeriesSKU}}
installSGXDrivers() {
[[ $UBUNTU_RELEASE == "20.04" || $UBUNTU_RELEASE == "18.04" || $UBUNTU_RELEASE == "16.04" ]] || exit 92
local packages="make gcc dkms" oe_dir="/opt/azure/containers/oe"
wait_for_apt_locks
retrycmd 30 5 3600 apt-get -y install "$packages" || exit 90
rm -rf ${oe_dir}
mkdir -p ${oe_dir}
pushd ${oe_dir} || exit
retrycmd 10 10 120 curl -fsSL -O "https://download.01.org/intel-sgx/latest/version.xml" || exit 90
dcap_version="$(grep dcap version.xml | grep -o -E "[.0-9]+")"
sgx_driver_folder_url="https://download.01.org/intel-sgx/sgx-dcap/$dcap_version/linux"
retrycmd 10 10 120 curl -fsSL -O "$sgx_driver_folder_url/SHA256SUM_dcap_$dcap_version.cfg" || exit 90
matched_line="$(grep "distro/ubuntuServer$UBUNTU_RELEASE/sgx_linux_x64_driver_.*bin" SHA256SUM_dcap_$dcap_version.cfg)"
read -ra tmp_array <<<"$matched_line"
sgx_driver_sha256sum_expected="${tmp_array[0]}"
sgx_driver_remote_path="${tmp_array[1]}"
sgx_driver_url="${sgx_driver_folder_url}/${sgx_driver_remote_path}"
sgx_driver=$(basename "$sgx_driver_url")
retrycmd 10 10 120 curl -fsSL -O "${sgx_driver_url}" || exit 90
read -ra tmp_array <<<"$(sha256sum ./"$sgx_driver")"
sgx_driver_sha256sum_real="${tmp_array[0]}"
[[ $sgx_driver_sha256sum_real == "$sgx_driver_sha256sum_expected" ]] || exit 93
chmod a+x ./"${sgx_driver}"
if ! ./"${sgx_driver}"; then
popd || exit
exit 91
fi
popd || exit
rm -rf ${oe_dir}
}
{{end}}
{{- if HasVHDDistroNodes}}
cleanUpContainerImages() {
{{- if NeedsContainerd}}
docker rmi -f $(docker images -a -q) &
{{else}}
docker rmi $(docker images --format '{{OpenBraces}}.Repository{{CloseBraces}}:{{OpenBraces}}.Tag{{CloseBraces}}' | grep -vE "${ETCD_VERSION}$|${ETCD_VERSION}-|${ETCD_VERSION}_" | grep 'etcd') &
docker rmi $(docker images --format '{{OpenBraces}}.Repository{{CloseBraces}}:{{OpenBraces}}.Tag{{CloseBraces}}' | grep -vE "${KUBERNETES_VERSION}$|${KUBERNETES_VERSION}-|${KUBERNETES_VERSION}_" | grep 'kube-proxy') &
docker rmi $(docker images --format '{{OpenBraces}}.Repository{{CloseBraces}}:{{OpenBraces}}.Tag{{CloseBraces}}' | grep -vE "${KUBERNETES_VERSION}$|${KUBERNETES_VERSION}-|${KUBERNETES_VERSION}_" | grep 'kube-controller-manager') &
docker rmi $(docker images --format '{{OpenBraces}}.Repository{{CloseBraces}}:{{OpenBraces}}.Tag{{CloseBraces}}' | grep -vE "${KUBERNETES_VERSION}$|${KUBERNETES_VERSION}-|${KUBERNETES_VERSION}_" | grep 'kube-apiserver') &
docker rmi $(docker images --format '{{OpenBraces}}.Repository{{CloseBraces}}:{{OpenBraces}}.Tag{{CloseBraces}}' | grep -vE "${KUBERNETES_VERSION}$|${KUBERNETES_VERSION}-|${KUBERNETES_VERSION}_" | grep 'kube-scheduler') &
docker rmi registry:2.7.1 &
ctr -n=k8s.io image rm $(ctr -n=k8s.io images ls -q) &
{{- end}}
}
cleanUpGPUDrivers() {
rm -Rf $GPU_DEST
rm -f /etc/apt/sources.list.d/nvidia-docker.list
apt-key del $(apt-key list | grep NVIDIA -B 1 | head -n 1 | cut -d "/" -f 2 | cut -d " " -f 1)
}
cleanUpContainerd() {
rm -Rf $CONTAINERD_DOWNLOADS_DIR
}
{{end}}
removeEtcd() {
rm -rf /usr/bin/etcd
}
exit_cse() {
local exit_code=$1
shift
$@ >> {{GetLinuxCSELogPath}} &
exit $exit_code
}
#EOF