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cloud-config-controller
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cloud-config-controller
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{{ define "instance" -}}
{{- $S3URI := self.Parts.s3.Asset.S3URL -}}
#!/bin/bash -xe
. /etc/environment
export COREOS_PRIVATE_IPV4 COREOS_PRIVATE_IPV6 COREOS_PUBLIC_IPV4 COREOS_PUBLIC_IPV6
REGION=$(curl -s http://169.254.169.254/latest/dynamic/instance-identity/document | jq -r '.region')
USERDATA_FILE=userdata-controller
run() {
bin="$1"; shift
while ! /usr/bin/rkt run \
--net=host \
--volume=dns,kind=host,source=/etc/resolv.conf,readOnly=true --mount volume=dns,target=/etc/resolv.conf \
--volume=awsenv,kind=host,source=/var/run/coreos,readOnly=false --mount volume=awsenv,target=/var/run/coreos \
--trust-keys-from-https \
{{.AWSCliImage.Options}}{{.AWSCliImage.RktRepo}} --exec=$bin -- "$@"; do
sleep 1
done
}
run bash -c "aws configure set s3.signature_version s3v4; aws s3 --region $REGION cp {{$S3URI}} /var/run/coreos/$USERDATA_FILE"
exec /usr/bin/coreos-cloudinit --from-file /var/run/coreos/$USERDATA_FILE
{{ end }}
{{ define "s3" -}}
#cloud-config
coreos:
update:
reboot-strategy: "off"
flannel:
interface: $private_ipv4
etcd_cafile: /etc/kubernetes/ssl/etcd-trusted-ca.pem
etcd_certfile: /etc/kubernetes/ssl/etcd-client.pem
etcd_keyfile: /etc/kubernetes/ssl/etcd-client-key.pem
units:
{{- range $u := .Controller.CustomSystemdUnits}}
- name: {{$u.Name}}
{{- if $u.Command }}
command: {{ $u.Command }}
{{- end}}
{{- if $u.Enable }}
enable: {{ $u.Enable }}
{{- end }}
{{- if $u.Runtime }}
runtime: {{ $u.Runtime }}
{{- end }}
{{- if $u.DropInsPresent }}
drop-ins:
{{- range $d := $u.DropIns }}
- name: {{ $d.Name }}
content: |
{{- range $i := $d.ContentArray }}
{{ $i }}
{{- end}}
{{- end }}
{{- end}}
{{- if $u.ContentPresent }}
content: |
{{- range $l := $u.ContentArray}}
{{ $l }}
{{- end }}
{{- end }}
{{- end}}
- name: systemd-modules-load.service
command: restart
{{if and (.AmazonSsmAgent.Enabled) (ne .AmazonSsmAgent.DownloadUrl "")}}
- name: amazon-ssm-agent.service
command: start
enable: true
content: |
[Unit]
Description=amazon-ssm-agent
Requires=network-online.target
After=network-online.target
[Service]
Type=simple
ExecStartPre=/opt/ssm/bin/install-ssm-agent.sh
ExecStart=/opt/ssm/bin/amazon-ssm-agent
KillMode=controll-group
Restart=on-failure
RestartSec=1min
[Install]
WantedBy=network-online.target
{{end}}
{{if .CloudWatchLogging.Enabled}}
- name: journald-cloudwatch-logs.service
command: start
content: |
[Unit]
Description=Docker run journald-cloudwatch-logs to send journald logs to CloudWatch
Requires=network-online.target
After=network-online.target
[Service]
ExecStartPre=-/usr/bin/mkdir -p /var/journald-cloudwatch-logs
ExecStart=/usr/bin/rkt run \
--insecure-options=image \
--volume resolv,kind=host,source=/etc/resolv.conf,readOnly=true \
--mount volume=resolv,target=/etc/resolv.conf \
--volume journald-cloudwatch-logs,kind=host,source=/var/journald-cloudwatch-logs \
--mount volume=journald-cloudwatch-logs,target=/var/journald-cloudwatch-logs \
--volume journal,kind=host,source=/var/log/journal,readOnly=true \
--mount volume=journal,target=/var/log/journal \
--volume machine-id,kind=host,source=/etc/machine-id,readOnly=true \
--mount volume=machine-id,target=/etc/machine-id \
--uuid-file-save=/var/journald-cloudwatch-logs/journald-cloudwatch-logs.uuid \
{{ .JournaldCloudWatchLogsImage.RktRepo }} -- {{.ClusterName}}
ExecStopPost=/usr/bin/rkt rm --uuid-file=/var/journald-cloudwatch-logs/journald-cloudwatch-logs.uuid
Restart=always
RestartSec=60s
[Install]
WantedBy=multi-user.target
{{end}}
- name: cfn-etcd-environment.service
enable: true
command: start
runtime: true
content: |
[Unit]
Description=Fetches etcd static IP addresses list from CF
After=network-online.target
[Service]
Restart=on-failure
RemainAfterExit=true
ExecStartPre=/opt/bin/cfn-etcd-environment
ExecStart=/usr/bin/mv -f /var/run/coreos/etcd-environment /etc/etcd-environment
{{if .Experimental.AwsEnvironment.Enabled}}
- name: set-aws-environment.service
enable: true
command: start
runtime: true
content: |
[Unit]
Description=Set AWS environment variables in /etc/aws-environment
After=network-online.target
[Service]
Type=oneshot
RemainAfterExit=true
ExecStartPre=/bin/touch /etc/aws-environment
ExecStart=/opt/bin/set-aws-environment
{{end}}
- name: docker.service
drop-ins:
{{if .Experimental.EphemeralImageStorage.Enabled}}
- name: 10-docker-mount.conf
content: |
[Unit]
After=var-lib-docker.mount
Wants=var-lib-docker.mount
{{end}}
- name: 10-post-start-check.conf
content: |
[Service]
RestartSec=10
ExecStartPost=/usr/bin/docker pull {{.PauseImage.RepoWithTag}}
- name: 40-flannel.conf
content: |
[Unit]
Wants=flanneld.service
[Service]
EnvironmentFile=/etc/kubernetes/cni/docker_opts_cni.env
ExecStartPre=/usr/bin/systemctl is-active flanneld.service
- name: 60-logfilelimit.conf
content: |
[Service]
Environment="DOCKER_OPTS=--log-opt max-size=50m --log-opt max-file=3"
- name: flanneld.service
drop-ins:
- name: 10-etcd.conf
content: |
[Unit]
Wants=cfn-etcd-environment.service
After=cfn-etcd-environment.service
[Service]
EnvironmentFile=-/etc/etcd-environment
Environment="ETCD_SSL_DIR=/etc/kubernetes/ssl"
EnvironmentFile=-/run/flannel/etcd-endpoints.opts
ExecStartPre=/usr/bin/systemctl is-active cfn-etcd-environment.service
ExecStartPre=/bin/sh -ec "echo FLANNELD_ETCD_ENDPOINTS=${ETCD_ENDPOINTS} >/run/flannel/etcd-endpoints.opts"
{{- if .AssetsEncryptionEnabled }}
ExecStartPre=/opt/bin/decrypt-assets
{{- end}}
ExecStartPre=/usr/bin/etcdctl \
--ca-file=/etc/kubernetes/ssl/etcd-trusted-ca.pem \
--cert-file=/etc/kubernetes/ssl/etcd-client.pem \
--key-file=/etc/kubernetes/ssl/etcd-client-key.pem \
--endpoints="${ETCD_ENDPOINTS}" \
set /coreos.com/network/config '{"Network" : "{{.PodCIDR}}", "Backend" : {"Type" : "vxlan"}}'
TimeoutStartSec=120
{{if .FlannelImage.RktPullDocker}}
- name: 20-flannel-custom-image.conf
content: |
[Unit]
PartOf=flanneld.service
Before=docker.service
[Service]
Environment="FLANNEL_IMAGE={{.FlannelImage.RktRepo}}"
Environment="RKT_RUN_ARGS={{.FlannelImage.Options}}"
- name: flannel-docker-opts.service
drop-ins:
- name: 10-flannel-docker-options.conf
content: |
[Unit]
PartOf=flanneld.service
Before=docker.service
[Service]
Environment="FLANNEL_IMAGE={{.FlannelImage.RktRepo}}"
Environment="RKT_RUN_ARGS={{.FlannelImage.Options}} --uuid-file-save=/var/lib/coreos/flannel-wrapper2.uuid"
{{end}}
- name: kubelet.service
command: start
runtime: true
content: |
[Unit]
Wants=flanneld.service cfn-etcd-environment.service
After=cfn-etcd-environment.service
[Service]
# EnvironmentFile=/etc/environment allows the reading of COREOS_PRIVATE_IPV4
EnvironmentFile=/etc/environment
EnvironmentFile=-/etc/etcd-environment
Environment=KUBELET_IMAGE_TAG={{.K8sVer}}
Environment=KUBELET_IMAGE_URL={{ .HyperkubeImage.RktRepoWithoutTag }}
Environment="RKT_RUN_ARGS=--volume dns,kind=host,source=/etc/resolv.conf {{.HyperkubeImage.Options}}\
--set-env=ETCD_CA_CERT_FILE=/etc/kubernetes/ssl/etcd-trusted-ca.pem \
--set-env=ETCD_CERT_FILE=/etc/kubernetes/ssl/etcd-client.pem \
--set-env=ETCD_KEY_FILE=/etc/kubernetes/ssl/etcd-client-key.pem \
--mount volume=dns,target=/etc/resolv.conf \
{{ if eq .ContainerRuntime "rkt" -}}
--volume rkt,kind=host,source=/opt/bin/host-rkt \
--mount volume=rkt,target=/usr/bin/rkt \
--volume var-lib-rkt,kind=host,source=/var/lib/rkt \
--mount volume=var-lib-rkt,target=/var/lib/rkt \
--volume stage,kind=host,source=/tmp \
--mount volume=stage,target=/tmp \
{{ end -}}
--volume var-lib-cni,kind=host,source=/var/lib/cni \
--mount volume=var-lib-cni,target=/var/lib/cni \
--volume var-log,kind=host,source=/var/log \
--mount volume=var-log,target=/var/log{{ if .UseCalico }} \
--volume cni-bin,kind=host,source=/opt/cni/bin \
--mount volume=cni-bin,target=/opt/cni/bin{{ end }} \
--volume etc-kubernetes,kind=host,source=/etc/kubernetes \
--mount volume=etc-kubernetes,target=/etc/kubernetes"
ExecStartPre=/usr/bin/systemctl is-active flanneld.service
ExecStartPre=/usr/bin/systemctl is-active cfn-etcd-environment.service
ExecStartPre=/usr/bin/mkdir -p /var/lib/cni
ExecStartPre=/usr/bin/mkdir -p /var/log/containers
ExecStartPre=/usr/bin/mkdir -p /opt/cni/bin
ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/manifests
ExecStartPre=/usr/bin/etcdctl \
--ca-file /etc/kubernetes/ssl/etcd-trusted-ca.pem \
--key-file /etc/kubernetes/ssl/etcd-client-key.pem \
--cert-file /etc/kubernetes/ssl/etcd-client.pem \
--endpoints "${ETCD_ENDPOINTS}" \
cluster-health
ExecStartPre=/bin/sh -ec "find /etc/kubernetes/manifests /srv/kubernetes/manifests -maxdepth 1 -type f | xargs --no-run-if-empty sed -i 's|#ETCD_ENDPOINTS#|${ETCD_ENDPOINTS}|'"
{{if .UseCalico -}}
ExecStartPre=/bin/sh -ec "find /etc/kubernetes/cni/net.d/ -maxdepth 1 -type f | xargs --no-run-if-empty sed -i 's|#ETCD_ENDPOINTS#|${ETCD_ENDPOINTS}|'"
ExecStartPre=/usr/bin/docker run --rm -e SLEEP=false -e KUBERNETES_SERVICE_HOST= -e KUBERNETES_SERVICE_PORT= -v /opt/cni/bin:/host/opt/cni/bin {{ .CalicoCniImage.RepoWithTag }} /install-cni.sh
{{end -}}
ExecStart=/usr/lib/coreos/kubelet-wrapper \
--kubeconfig=/etc/kubernetes/kubeconfig/controller.yaml \
--require-kubeconfig \
--cni-conf-dir=/etc/kubernetes/cni/net.d \
{{/* Work-around until https://github.com/kubernetes/kubernetes/issues/43967 is fixed via https://github.com/kubernetes/kubernetes/pull/43995 */ -}}
--cni-bin-dir=/opt/cni/bin \
--network-plugin={{.K8sNetworkPlugin}} \
--container-runtime={{.ContainerRuntime}} \
--rkt-path=/usr/bin/rkt \
--rkt-stage1-image=coreos.com/rkt/stage1-coreos \
--node-labels node-role.kubernetes.io/master{{if .NodeLabels.Enabled}},{{.NodeLabels.String}} \
{{end}} \
--register-with-taints=node.alpha.kubernetes.io/role=master:NoSchedule \
--allow-privileged=true \
--pod-manifest-path=/etc/kubernetes/manifests \
{{ if .KubeDns.NodeLocalResolver }}--cluster-dns=${COREOS_PRIVATE_IPV4} \
{{ else }}--cluster-dns={{.DNSServiceIP}} \
{{ end }}--cluster-domain=cluster.local \
--cloud-provider=aws \
$KUBELET_OPTS
Restart=always
RestartSec=10
[Install]
WantedBy=multi-user.target
{{ if eq .ContainerRuntime "rkt" }}
- name: rkt-api.service
enable: true
content: |
[Unit]
Before=kubelet.service
[Service]
ExecStart=/usr/bin/rkt api-service
Restart=always
RestartSec=10
[Install]
RequiredBy=kubelet.service
- name: load-rkt-stage1.service
enable: true
content: |
[Unit]
Description=Load rkt stage1 images
Documentation=http://github.com/coreos/rkt
Requires=network-online.target
After=network-online.target
Before=rkt-api.service
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/bin/rkt fetch /usr/lib/rkt/stage1-images/stage1-coreos.aci /usr/lib/rkt/stage1-images/stage1-fly.aci --insecure-options=image
[Install]
RequiredBy=rkt-api.service
{{ end }}
- name: install-kube-system.service
command: start
runtime: true
content: |
[Unit]
Wants=kubelet.service docker.service
[Service]
Type=oneshot
StartLimitInterval=0
RemainAfterExit=true
ExecStartPre=/usr/bin/bash -c "until /usr/bin/systemctl is-active kubelet.service; do echo waiting until kubelet starts; sleep 10; done"
ExecStartPre=/usr/bin/bash -c "until /usr/bin/systemctl is-active docker.service; do echo waiting until docker starts; sleep 10; done"
ExecStartPre=/usr/bin/bash -c "until /usr/bin/curl -s -f http://127.0.0.1:8080/version; do echo waiting until apiserver starts; sleep 10; done"
ExecStart=/opt/bin/retry 3 /opt/bin/install-kube-system
- name: apply-kube-aws-plugins.service
command: start
runtime: true
content: |
[Unit]
Requires=install-kube-system.service
After=install-kube-system.service
[Service]
Type=oneshot
StartLimitInterval=0
RemainAfterExit=true
ExecStart=/opt/bin/retry 3 /opt/bin/apply-kube-aws-plugins
{{ if $.ElasticFileSystemID }}
- name: rpc-statd.service
command: start
enable: true
- name: efs.service
command: start
content: |
[Unit]
After=network-online.target
Before=kubelet.service
[Service]
Type=oneshot
ExecStartPre=-/usr/bin/mkdir -p /efs
ExecStart=/bin/sh -c 'grep -qs /efs /proc/mounts || /usr/bin/mount -t nfs4 -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2 $(/usr/bin/curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone).{{ $.ElasticFileSystemID }}.efs.{{ $.Region }}.amazonaws.com:/ /efs'
ExecStop=/usr/bin/umount /efs
RemainAfterExit=yes
[Install]
WantedBy=kubelet.service
{{ end }}
{{if .WaitSignal.Enabled}}
- name: cfn-signal.service
command: start
content: |
[Unit]
Wants=kubelet.service docker.service install-kube-system.service apply-kube-aws-plugins.service
After=kubelet.service install-kube-system.service apply-kube-aws-plugins.service
[Service]
Type=simple
Restart=on-failure
RestartSec=60
StartLimitInterval=640
StartLimitBurst=10
ExecStartPre=/usr/bin/systemctl is-active install-kube-system.service
ExecStartPre=/usr/bin/systemctl is-active apply-kube-aws-plugins.service
ExecStartPre=/usr/bin/bash -c "while sleep 1; do if /usr/bin/curl -s -m 20 -f http://127.0.0.1:8080/healthz > /dev/null && /usr/bin/curl -s -m 20 -f http://127.0.0.1:10252/healthz > /dev/null && /usr/bin/curl -s -m 20 -f http://127.0.0.1:10251/healthz > /dev/null && /usr/bin/curl --insecure -s -m 20 -f https://127.0.0.1:10250/healthz > /dev/null && /usr/bin/curl -s -m 20 -f http://127.0.0.1:10256/healthz > /dev/null; then break ; fi; done"
{{ if .UseCalico }}
ExecStartPre=/usr/bin/bash -c "until /usr/bin/docker run --net=host --pid=host --rm {{ .CalicoCtlImage.RepoWithTag }} node status > /dev/null; do sleep 3; done && echo Calico running"
{{ end }}
{{if .Experimental.AuditLog.Enabled -}}
ExecStartPre=/opt/bin/check-worker-communication
{{end -}}
ExecStart=/opt/bin/cfn-signal
{{end}}
{{if .Experimental.AwsNodeLabels.Enabled }}
- name: kube-node-label.service
enable: true
command: start
runtime: true
content: |
[Unit]
Description=Label this kubernetes node with additional AWS parameters
Wants=kubelet.service
After=kubelet.service
Before=cfn-signal.service
[Service]
Type=oneshot
ExecStop=/bin/true
RemainAfterExit=true
ExecStart=/opt/bin/kube-node-label
{{end}}
{{if .Experimental.EphemeralImageStorage.Enabled}}
- name: format-ephemeral.service
command: start
content: |
[Unit]
Description=Formats the ephemeral drive
ConditionFirstBoot=yes
After=dev-{{.Experimental.EphemeralImageStorage.Disk}}.device
Requires=dev-{{.Experimental.EphemeralImageStorage.Disk}}.device
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/sbin/wipefs -f /dev/{{.Experimental.EphemeralImageStorage.Disk}}
ExecStart=/usr/sbin/mkfs.{{.Experimental.EphemeralImageStorage.Filesystem}} -f /dev/{{.Experimental.EphemeralImageStorage.Disk}}
- name: var-lib-docker.mount
command: start
content: |
[Unit]
Description=Mount ephemeral to /var/lib/docker
Requires=format-ephemeral.service
After=format-ephemeral.service
[Mount]
What=/dev/{{.Experimental.EphemeralImageStorage.Disk}}
{{if eq .ContainerRuntime "docker"}}
Where=/var/lib/docker
{{else if eq .ContainerRuntime "rkt"}}
Where=/var/lib/rkt
{{end}}
Type={{.Experimental.EphemeralImageStorage.Filesystem}}
{{end}}
{{ if .SharedPersistentVolume }}
- name: load-efs-pv.service
command: start
content: |
[Unit]
Description=Load efs persistent volume mount
Wants=kubelet.service
After=kubelet.service
Before=cfn-signal.service
[Service]
Type=simple
RemainAfterExit=true
RestartSec=10
Restart=on-failure
ExecStartPre=/opt/bin/set-efs-pv
ExecStart=/opt/bin/load-efs-pv
{{end}}
{{if .SSHAuthorizedKeys}}
ssh_authorized_keys:
{{range $sshkey := .SSHAuthorizedKeys}}
- {{$sshkey}}
{{end}}
{{end}}
{{if .Region.IsChina}}
- name: pause-amd64.service
enable: true
command: start
runtime: true
content: |
[Unit]
Description=Pull and tag a mirror image for pause-amd64
Wants=docker.service
After=docker.service
[Service]
Restart=on-failure
RemainAfterExit=true
ExecStartPre=/usr/bin/systemctl is-active docker.service
ExecStartPre=/usr/bin/docker pull {{.PauseImage.RepoWithTag}}
ExecStart=/usr/bin/docker tag {{.PauseImage.RepoWithTag}} gcr.io/google_containers/pause-amd64:3.0
ExecStop=/bin/true
[Install]
WantedBy=install-kube-system.service
{{end}}
write_files:
- path: /etc/ssh/sshd_config
permissions: 0600
owner: root:root
content: |
UsePrivilegeSeparation sandbox
Subsystem sftp internal-sftp
ClientAliveInterval 180
UseDNS no
UsePAM yes
PrintLastLog no # handled by PAM
PrintMotd no # handled by PAM
PasswordAuthentication no
ChallengeResponseAuthentication no
{{- if .Controller.CustomFiles}}
{{- range $w := .Controller.CustomFiles}}
- path: {{$w.Path}}
permissions: {{$w.PermissionsString}}
encoding: gzip+base64
content: {{$w.GzippedBase64Content}}
{{- end }}
{{- end }}
- path: /etc/modules-load.d/ip_vs.conf
content: |
ip_vs
ip_vs_rr
ip_vs_wrr
ip_vs_sh
nf_conntrack_ipv4
{{if and (.AmazonSsmAgent.Enabled) (ne .AmazonSsmAgent.DownloadUrl "")}}
- path: "/opt/ssm/bin/install-ssm-agent.sh"
permissions: 0700
content: |
#!/bin/bash
set -e
TARGET_DIR=/opt/ssm
if [[ -f "${TARGET_DIR}"/bin/amazon-ssm-agent ]]; then
exit 0
fi
TMP_DIR=$(mktemp -d)
trap "rm -rf ${TMP_DIR}" EXIT
TAR_FILE=ssm.linux-amd64.tar.gz
CHECKSUM_FILE="${TAR_FILE}.sha1"
echo -n "{{ .AmazonSsmAgent.Sha1Sum }} ${TMP_DIR}/${TAR_FILE}" > "${TMP_DIR}/${CHECKSUM_FILE}"
curl --silent -L -o "${TMP_DIR}/${TAR_FILE}" "{{ .AmazonSsmAgent.DownloadUrl }}"
sha1sum --quiet -c "${TMP_DIR}/${CHECKSUM_FILE}"
tar zfx "${TMP_DIR}"/"${TAR_FILE}" -C "${TMP_DIR}"
chown -R root:root "${TMP_DIR}"/ssm
CONFIG_DIR=/etc/amazon/ssm
mkdir -p "${CONFIG_DIR}"
mv -f "${TMP_DIR}"/ssm/amazon-ssm-agent.json "${CONFIG_DIR}"/amazon-ssm-agent.json
mv -f "${TMP_DIR}"/ssm/seelog_unix.xml "${CONFIG_DIR}"/seelog.xml
mv -f "${TMP_DIR}"/ssm/* "${TARGET_DIR}"/bin/
{{end}}
{{if .Experimental.DisableSecurityGroupIngress}}
- path: /etc/kubernetes/additional-configs/cloud.config
owner: root:root
permissions: 0644
content: |
[global]
DisableSecurityGroupIngress = true
{{end}}
- path: /opt/bin/apply-kube-aws-plugins
permissions: 0700
owner: root:root
content: |
#!/bin/bash -vxe
kubectl() {
/usr/bin/docker run --rm --net=host \
-v /etc/resolv.conf:/etc/resolv.conf \
-v {{.KubernetesManifestPlugin.Directory}}:{{.KubernetesManifestPlugin.Directory}} \
{{.HyperkubeImage.RepoWithTag}} /hyperkube kubectl "$@"
}
helm() {
/usr/bin/docker run --rm --net=host \
-v /etc/resolv.conf:/etc/resolv.conf \
-v {{.HelmReleasePlugin.Directory}}:{{.HelmReleasePlugin.Directory}} \
{{.HelmImage.RepoWithTag}} helm "$@"
}
while read m || [[ -n $m ]]; do
kubectl apply -f $m
done <{{.KubernetesManifestPlugin.ManifestListFile.Path}}
while read r || [[ -n $r ]]; do
release_name=$(jq .name $r)
chart_name=$(jq .chart.name $r)
chart_version=$(jq .chart.version $r)
values_file=$(jq .values.file $r)
if helm status $release_name; then
helm upgrade $release_name $chart_name --version $chart_version -f $values_file
else
helm install $release_name $chart_name --version $chart_version -f $values_file
fi
done <{{.HelmReleasePlugin.ReleaseListFile.Path}}
{{if .Experimental.AwsEnvironment.Enabled}}
- path: /opt/bin/set-aws-environment
owner: root:root
permissions: 0700
content: |
#!/bin/bash -e
rkt run \
--volume=dns,kind=host,source=/etc/resolv.conf,readOnly=true \
--mount volume=dns,target=/etc/resolv.conf \
--volume=awsenv,kind=host,source=/etc/aws-environment,readOnly=false \
--mount volume=awsenv,target=/etc/aws-environment \
--uuid-file-save=/var/run/coreos/set-aws-environment.uuid \
--net=host \
--trust-keys-from-https \
{{.AWSCliImage.Options}}{{.AWSCliImage.RktRepo}} --exec=/bin/bash -- \
-ec \
'instance_id=$(curl http://169.254.169.254/latest/meta-data/instance-id)
stack_name=$(
aws ec2 describe-tags --region {{.Region}} --filters \
"Name=resource-id,Values=$instance_id" \
"Name=key,Values=aws:cloudformation:stack-name" \
--output json \
| jq -r ".Tags[].Value"
)
cfn-init -v -c "aws-environment" --region {{.Region}} --resource {{.Controller.LogicalName}} --stack $stack_name
'
rkt rm --uuid-file=/var/run/coreos/set-aws-environment.uuid || :
{{end}}
{{if .Experimental.AwsNodeLabels.Enabled -}}
- path: /opt/bin/kube-node-label
permissions: 0700
owner: root:root
content: |
#!/bin/bash -e
set -ue
INSTANCE_ID="$(/usr/bin/curl -s http://169.254.169.254/latest/meta-data/instance-id)"
SECURITY_GROUPS="$(/usr/bin/curl -s http://169.254.169.254/latest/meta-data/security-groups | tr '\n' ',')"
AUTOSCALINGGROUP="$(/usr/bin/docker run --rm --net=host \
{{.AWSCliImage.RepoWithTag}} aws \
autoscaling describe-auto-scaling-instances \
--instance-ids ${INSTANCE_ID} --region {{.Region}} \
--query 'AutoScalingInstances[].AutoScalingGroupName' --output text)"
LAUNCHCONFIGURATION="$(/usr/bin/docker run --rm --net=host \
{{.AWSCliImage.RepoWithTag}} \
aws autoscaling describe-auto-scaling-groups \
--auto-scaling-group-name $AUTOSCALINGGROUP --region {{.Region}} \
--query 'AutoScalingGroups[].LaunchConfigurationName' --output text)"
until /usr/bin/curl -s -f http://127.0.0.1:8080/version; do echo waiting until apiserver starts; sleep 1; done
/usr/bin/curl \
--retry 5 \
--request PATCH \
-H 'Content-Type: application/strategic-merge-patch+json' \
-d '{
"metadata": {
"labels": {
"kube-aws.coreos.com/autoscalinggroup": "'${AUTOSCALINGGROUP}'",
"kube-aws.coreos.com/launchconfiguration": "'${LAUNCHCONFIGURATION}'"
},
"annotations": {
"kube-aws.coreos.com/securitygroups": "'${SECURITY_GROUPS}'"
}
}
}' \
http://localhost:8080/api/v1/nodes/$(hostname)
{{end -}}
{{ if .SharedPersistentVolume }}
- path: /opt/bin/set-efs-pv
owner: root:root
permissions: 0700
content: |
#!/bin/bash -e
rkt run \
--volume=dns,kind=host,source=/etc/resolv.conf,readOnly=true \
--mount volume=dns,target=/etc/resolv.conf \
--volume=awsenv,kind=host,source=/etc/kubernetes,readOnly=false \
--mount volume=awsenv,target=/etc/kubernetes \
--uuid-file-save=/var/run/coreos/set-efs-pv.uuid \
--net=host \
--trust-keys-from-https \
{{.AWSCliImage.Options}}{{.AWSCliImage.RktRepo}} --exec=/bin/bash -- \
-ec \
'instance_id=$(curl http://169.254.169.254/latest/meta-data/instance-id)
stack_name=$(
aws ec2 describe-tags --region {{.Region}} --filters \
"Name=resource-id,Values=$instance_id" \
"Name=key,Values=aws:cloudformation:stack-name" \
--output json \
| jq -r ".Tags[].Value"
)
cfn-init -v -c "load-efs-pv" --region {{.Region}} --resource {{.Controller.LogicalName}} --stack $stack_name
'
rkt rm --uuid-file=/var/run/coreos/set-efs-pv.uuid || :
{{end}}
- path: /opt/bin/cfn-signal
owner: root:root
permissions: 0700
content: |
#!/bin/bash -e
rkt run \
--volume=dns,kind=host,source=/etc/resolv.conf,readOnly=true \
--mount volume=dns,target=/etc/resolv.conf \
--volume=awsenv,kind=host,source=/var/run/coreos,readOnly=false \
--mount volume=awsenv,target=/var/run/coreos \
--uuid-file-save=/var/run/coreos/cfn-signal.uuid \
--net=host \
--trust-keys-from-https \
{{.AWSCliImage.Options}}{{.AWSCliImage.RktRepo}} --exec=/bin/bash -- \
-ec \
'instance_id=$(curl http://169.254.169.254/latest/meta-data/instance-id)
stack_name=$(
aws ec2 describe-tags --region {{.Region}} --filters \
"Name=resource-id,Values=$instance_id" \
"Name=key,Values=aws:cloudformation:stack-name" \
--output json \
| jq -r ".Tags[].Value"
)
cfn-signal -e 0 --region {{.Region}} --resource {{.Controller.LogicalName}} --stack $stack_name
'
rkt rm --uuid-file=/var/run/coreos/cfn-signal.uuid || :
- path: /opt/bin/cfn-etcd-environment
owner: root:root
permissions: 0700
content: |
#!/bin/bash -e
rkt run \
--volume=dns,kind=host,source=/etc/resolv.conf,readOnly=true \
--mount volume=dns,target=/etc/resolv.conf \
--volume=awsenv,kind=host,source=/var/run/coreos,readOnly=false \
--mount volume=awsenv,target=/var/run/coreos \
--uuid-file-save=/var/run/coreos/cfn-etcd-environment.uuid \
--net=host \
--trust-keys-from-https \
{{.AWSCliImage.Options}}{{.AWSCliImage.RktRepo}} --exec=/bin/bash -- \
-ec \
'instance_id=$(curl http://169.254.169.254/latest/meta-data/instance-id)
stack_name=$(
aws ec2 describe-tags --region {{.Region}} --filters \
"Name=resource-id,Values=$instance_id" \
"Name=key,Values=aws:cloudformation:stack-name" \
--output json \
| jq -r ".Tags[].Value"
)
cfn-init -v -c "etcd-client" --region {{.Region}} --resource {{.Controller.LogicalName}} --stack $stack_name
'
rkt rm --uuid-file=/var/run/coreos/cfn-etcd-environment.uuid || :
- path: /etc/default/kubelet
permissions: 0755
owner: root:root
content: |
KUBELET_OPTS="{{.Experimental.KubeletOpts}}"
- path: /opt/bin/install-kube-system
permissions: 0700
owner: root:root
content: |
#!/bin/bash -e
kubectl() {
# --request-timeout=1s is intended to instruct kubectl to give up discovering unresponsive apiservice(s) in certain periods
# so that temporal freakiness/unresponsity of specific apiservice until apiserver/controller-manager fully starts doesn't
# affect the whole controller bootstrap process.
/usr/bin/docker run --rm --net=host -v /srv/kubernetes:/srv/kubernetes {{.HyperkubeImage.RepoWithTag}} /hyperkube kubectl --request-timeout=1s "$@"
}
ks() {
kubectl --namespace kube-system "$@"
}
# Try to batch as many files as possible to reduce the total amount of delay due to wilderness in the API aggregation
# See https://github.com/kubernetes-incubator/kube-aws/issues/1039
applyall() {
kubectl apply -f $(echo "$@" | tr ' ' ',')
}
while ! kubectl get ns kube-system; do
echo Waiting until kube-system created.
sleep 3
done
# See https://github.com/kubernetes-incubator/kube-aws/issues/1039#issuecomment-348978375
if ks get apiservice v1beta1.metrics.k8s.io && ! ps ax | grep '[h]yperkube proxy'; then
echo "apiserver is up but kube-proxy isn't up. We have likely encountered #1039."
echo "Temporary deleting the v1beta1.metrics.k8s.io apiservice as a work-around for #1039"
ks delete apiservice v1beta1.metrics.k8s.io
echo Waiting until controller-manager stabilizes and it creates a kube-proxy pod.
until ps ax | grep '[h]yperkube proxy'; do
echo Sleeping 3 seconds.
sleep 3
done
echo kube-proxy stared. apiserver should be responsive again.
fi
mfdir=/srv/kubernetes/manifests
rbac=/srv/kubernetes/rbac
{{ if .UseCalico }}
/bin/bash /opt/bin/populate-tls-calico-etcd
applyall "${mfdir}/calico.yaml"
{{ end }}
{{ if .Addons.MetricsServer.Enabled -}}
applyall \
"${mfdir}/metrics-server-sa.yaml" \
"${mfdir}/metrics-server-de.yaml" \
"${mfdir}/metrics-server-svc.yaml" \
"${rbac}/cluster-roles/metrics-server.yaml" \
"${rbac}/cluster-role-bindings/metrics-server.yaml" \
"${rbac}/role-bindings/metrics-server.yaml" \
"${mfdir}/metrics-server-apisvc.yaml"
{{- end }}
{{ if .Experimental.NodeDrainer.Enabled }}
applyall "${mfdir}"/{kube-node-drainer-ds,kube-node-drainer-asg-status-updater-de}".yaml"
{{ end }}
# Secrets
applyall "${mfdir}/kubernetes-dashboard-se.yaml"
# Configmaps
applyall "${mfdir}"/{kube-dns,kube-proxy}"-cm.yaml"
# Service Accounts
applyall "${mfdir}"/{kube-dns,heapster,kube-proxy,kubernetes-dashboard}"-sa.yaml"
# Install tiller by default
applyall "${mfdir}/tiller.yaml"
{{ if .KubeDns.NodeLocalResolver }}
# DNS Masq Fix
applyall "${mfdir}/dnsmasq-node-ds.yaml"
{{ end }}
# Deployments
applyall "${mfdir}"/{kube-dns,kube-dns-autoscaler,kubernetes-dashboard,{{ if .Addons.ClusterAutoscaler.Enabled }}cluster-autoscaler,{{ end }}heapster{{ if .KubeResourcesAutosave.Enabled }},kube-resources-autosave{{ end }}}"-de.yaml"
# Daemonsets
applyall "${mfdir}"/kube-proxy"-ds.yaml"
# Services
applyall "${mfdir}"/{kube-dns,heapster,kubernetes-dashboard}"-svc.yaml"
{{- if .Addons.Rescheduler.Enabled }}
applyall "${mfdir}/kube-rescheduler-de.yaml"
{{- end }}
mfdir=/srv/kubernetes/rbac
# Cluster roles and bindings
applyall "${mfdir}/cluster-roles/node-extensions.yaml"
applyall "${mfdir}/cluster-role-bindings"/{kube-admin,system-worker,node,node-proxier,node-extensions,heapster}".yaml"
{{ if .KubernetesDashboard.AdminPrivileges }}
applyall "${mfdir}/cluster-role-bindings/kubernetes-dashboard-admin.yaml"
{{- end }}
# Roles and bindings
applyall "${mfdir}/roles"/{pod-nanny,kubernetes-dashboard}".yaml"
applyall "${mfdir}/role-bindings"/{heapster-nanny,kubernetes-dashboard}".yaml"
{{ if .Experimental.TLSBootstrap.Enabled }}
applyall "${mfdir}/cluster-roles"/{node-bootstrapper,kubelet-certificate-bootstrap}".yaml"
applyall "${mfdir}/cluster-role-bindings"/{node-bootstrapper,kubelet-certificate-bootstrap}".yaml"
{{ end }}
{{if .Experimental.Kube2IamSupport.Enabled }}
mfdir=/srv/kubernetes/manifests
applyall "${mfdir}/kube2iam-rbac.yaml"
applyall "${mfdir}/kube2iam-ds.yaml";
{{ end }}
- path: /etc/kubernetes/cni/docker_opts_cni.env
content: |
DOCKER_OPT_BIP=""
DOCKER_OPT_IPMASQ=""
- path: /opt/bin/host-rkt
permissions: 0755
owner: root:root
content: |
#!/bin/sh
# This is bind mounted into the kubelet rootfs and all rkt shell-outs go
# through this rkt wrapper. It essentially enters the host mount namespace
# (which it is already in) only for the purpose of breaking out of the chroot
# before calling rkt. It makes things like rkt gc work and avoids bind mounting
# in certain rkt filesystem dependancies into the kubelet rootfs. This can
# eventually be obviated when the write-api stuff gets upstream and rkt gc is
# through the api-server. Related issue:
# https://github.com/coreos/rkt/issues/2878
exec nsenter -m -u -i -n -p -t 1 -- /usr/bin/rkt "$@"
{{ if .UseCalico }}
- path: /srv/kubernetes/manifests/calico.yaml
content: |
kind: ConfigMap
apiVersion: v1
metadata:
name: calico-config
namespace: kube-system
data:
etcd_endpoints: "#ETCD_ENDPOINTS#"
cni_network_config: |-
{
"name": "calico",
"type": "flannel",
"delegate": {
"type": "calico",
"etcd_endpoints": "__ETCD_ENDPOINTS__",
"etcd_key_file": "__ETCD_KEY_FILE__",
"etcd_cert_file": "__ETCD_CERT_FILE__",
"etcd_ca_cert_file": "__ETCD_CA_CERT_FILE__",
"log_level": "info",
"policy": {
"type": "k8s",
"k8s_api_root": "https://__KUBERNETES_SERVICE_HOST__:__KUBERNETES_SERVICE_PORT__",
"k8s_auth_token": "__SERVICEACCOUNT_TOKEN__"
},
"kubernetes": {
"kubeconfig": "__KUBECONFIG_FILEPATH__"
}
}
}
etcd_ca: "/calico-secrets/etcd-ca"
etcd_cert: "/calico-secrets/etcd-cert"
etcd_key: "/calico-secrets/etcd-key"
---
apiVersion: v1
kind: Secret
type: Opaque
metadata:
name: calico-etcd-secrets
namespace: kube-system
data:
etcd-key: "$ETCDKEY"
etcd-cert: "$ETCDCERT"
etcd-ca: "$ETCDCA"
---
kind: DaemonSet
apiVersion: extensions/v1beta1
metadata:
name: calico-node
namespace: kube-system
labels:
k8s-app: calico-node
spec:
selector:
matchLabels:
k8s-app: calico-node
updateStrategy:
type: RollingUpdate
template:
metadata:
labels:
k8s-app: calico-node
annotations:
scheduler.alpha.kubernetes.io/critical-pod: ''
spec:
tolerations:
- operator: Exists
effect: NoSchedule
- operator: Exists
effect: NoExecute
- operator: Exists
key: CriticalAddonsOnly
hostNetwork: true
containers:
- name: calico-node