dhcp ha by dhcp dyn range sharding

config.example/dgxie.yml

@@ -30,9 +30,6 @@ mgmtIntPrv: eth1
 # Network domain
 netDomain: local
 
-# IP address of private network interface on management server
-netPrvIp: 192.168.1.1
-
 # Private Network
 netPrvNet: 192.168.1.0
 
@@ -53,6 +50,10 @@ netPrvDhcpEnd: 192.168.1.199
 # DHCP lease time
 netPrvDhcpLease: 7200
 
+replicaCount: 2
+
+pixiecoreSigningKey: 'mysecret'
+
 # HTTPS proxy to use in preseed
 #httpsProxy: "http://192.168.2.1:3128"
 

containers/dgxie/Dockerfile

@@ -1,13 +1,29 @@
-FROM ubuntu:16.04
+FROM golang:1.10.2
+
+ENV COMMIT_HASH 27896bc470a2044c714101b2a321d6d900ccecbe
+ENV CUSTOM_FORK_AUTHOR hightoxicity
+RUN apt-get update
+RUN apt-get install -qy --no-install-recommends wget git
+RUN [ -d ${GOPATH}/bin ] || mkdir ${GOPATH}/bin
+RUN go get -u github.com/golang/dep/cmd/dep
+RUN mkdir -p ${GOPATH}/src/go.universe.tf
+WORKDIR /go/src/go.universe.tf
+RUN git clone https://github.com/google/netboot.git
+WORKDIR /go/src/go.universe.tf/netboot
+RUN git remote add ${CUSTOM_FORK_AUTHOR} https://github.com/${CUSTOM_FORK_AUTHOR}/netboot.git && git fetch ${CUSTOM_FORK_AUTHOR} && git checkout ${COMMIT_HASH}
+RUN dep ensure
+RUN ls -al ./vendor
+WORKDIR /go/src
+RUN CGO_ENABLED=0 GOOS=linux go build -o /bin/pixiecore -ldflags "-w -s -v -extldflags -static" go.universe.tf/netboot/cmd/pixiecore
 
+FROM ubuntu:16.04
 MAINTAINER Douglas Holt <[email protected]>
 
 RUN apt-get update && \
     apt-get -y install apt-transport-https curl && \
-    curl -L https://packagecloud.io/danderson/pixiecore/gpgkey | apt-key add - && \
-    echo "deb https://packagecloud.io/danderson/pixiecore/debian stretch main" >/etc/apt/sources.list.d/pixiecore.list && \
-    apt-get update && \
-    apt-get -y install pixiecore nginx vsftpd iptables dnsmasq python-flask
+    apt-get -y install nginx vsftpd iptables dnsmasq python-flask
+COPY --from=0 /bin/pixiecore /usr/bin/pixiecore
+RUN chmod +x /usr/bin/pixiecore
 
 RUN mkdir -p /www /var/run/vsftpd/empty
     # && \

containers/dgxie/dnsmasq.conf

@@ -20,7 +20,7 @@ log-facility=/var/log/dnsmasq.log
 #enable-tftp
 #tftp-root=/tftpboot
 
-dhcp-authoritative
+#dhcp-authoritative
 dhcp-range=#DHCP_START#,#DHCP_END#,#LEASETIME#
 #dhcp-option-force=209,efi64/pxelinux.cfg
 dhcp-option=tag:green,option:domain-search,#DOMAIN#

containers/dgxie/start

@@ -24,8 +24,43 @@ LEASETIME=${LEASETIME:-7200}
 DOMAIN=${DOMAIN:-local}
 HTTPS_PROXY=${HTTPS_PROXY:-}
 EXTRA_PACKAGES=${EXTRA_PACKAGES:-}
+MY_POD_NAME=${MY_POD_NAME:-}
+NUM_OF_REPLICAS=${NUM_OF_REPLICAS:-1}
 ###
 
+iptoi()
+{
+  a=$(echo "${1}" | cut -d"." -f1)
+  b=$(echo "${1}" | cut -d"." -f2)
+  c=$(echo "${1}" | cut -d"." -f3)
+  d=$(echo "${1}" | cut -d"." -f4)
+
+  echo "$(((a<<24)+(b<<16)+(c<<8)+d))"
+}
+
+itoip()
+{
+  #returns the dotted-decimal ascii form of an IP arg passed in integer format
+  echo -n $(($(($(($((${1}/256))/256))/256))%256)).
+  echo -n $(($(($((${1}/256))/256))%256)).
+  echo -n $(($((${1}/256))%256)).
+  echo $((${1}%256))
+}
+
+SHARD_IDX=$(( ${MY_POD_NAME##*-} ))
+
+if [ "${NUM_OF_REPLICAS}" -gt 1 ]; then
+  STARTINT=$(iptoi ${DHCP_START})
+  ENDINT=$(iptoi ${DHCP_END})
+
+  IPCOUNT=$(( ${ENDINT} - ${STARTINT} + 1 ))
+
+  SHARDIPCOUNT=$(( ${IPCOUNT} / ${NUM_OF_REPLICAS} ))
+
+  DHCP_START=$(itoip $(( STARTINT + (SHARD_IDX * SHARDIPCOUNT) )))
+  DHCP_END=$(itoip $(( STARTINT + ((SHARD_IDX + 1) * (SHARDIPCOUNT) - 1) )))
+fi
+
 mkdir -p "${ISO}"
 
 # Check for mounted DGX Server ISO
@@ -100,6 +135,6 @@ nginx &
 /usr/sbin/vsftpd /etc/vsftpd.conf &
 /usr/local/bin/rest_api.py >/dev/null 2>&1 &
 python /api.py &
-/usr/bin/pixiecore api http://127.0.0.1:${HTTP_PORT} --dhcp-no-bind -p 81 &
+/usr/bin/pixiecore api http://127.0.0.1:${HTTP_PORT} --dhcp-no-bind -p 81 --signing-key ${PIXIECORE_SIGNING_KEY} &
 dnsmasq
 tail -f /var/log/dnsmasq.log

services/dgxie/templates/deployment.yaml

@@ -1,5 +1,13 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: pixiecore
+type: Opaque
+data:
+  signingkey: {{ .Values.pixiecoreSigningKey | b64enc | b64enc }}
+---
 apiVersion: apps/v1beta2
-kind: Deployment
+kind: StatefulSet
 metadata:
   name: {{ template "dgxie.fullname" . }}
   labels:
@@ -72,7 +80,9 @@ spec:
               value: "{{ .Values.netDomain }}"
             # IP address of private network interface on management server
             - name: IP
-              value: "{{ .Values.netPrvIp }}"
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
             # Private Network
             - name: NETWORK
               value: "{{ .Values.netPrvNet }}"
@@ -102,6 +112,17 @@ spec:
               value: "{{ .Values.httpsProxy }}"
             - name: EXTRA_PACKAGES
               value: "{{ .Values.extraPackages }}"
+            - name: NUM_OF_REPLICAS
+              value: "{{ .Values.replicaCount }}"
+            - name: MY_POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+            - name: PIXIECORE_SIGNING_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: pixiecore
+                  key: signingkey
           resources:
 {{ toYaml .Values.resources | indent 12 }}
     {{- with .Values.nodeSelector }}
@@ -132,21 +153,6 @@ spec:
               clusterName: rook-ceph
               path: /iso
         - name: dhcp-leases
-          persistentVolumeClaim:
-            claimName: dhcp-leases
----
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: dhcp-leases
-  labels:
-    app: {{ template "dgxie.name" . }}
-  annotations:
-    volume.alpha.kubernetes.io/storage-class: default
-spec:
-  storageClassName: rook-ceph-block
-  accessModes:
-    - ReadWriteOnce
-  resources:
-    requests:
-      storage: 10M
+          hostPath:
+            path: /mnt/dhcp-leases
+            type: DirectoryOrCreate

services/dgxie/values.yaml

@@ -13,7 +13,6 @@ dgxKernExtra: ''
 mgmtIntPub: eth0
 mgmtIntPrv: eth1
 netDomain: local
-netPrvIp: 192.168.1.1
 netPrvNet: 192.168.1.0
 netPrvNetmask: 255.255.255.0
 netPrvGateway: 192.168.1.1
@@ -29,6 +28,8 @@ extraPackages: ''
 # Deployment config
 replicaCount: 1
 
+pixiecoreSigningKey: 'mysecret'
+
 image:
   repository: deepops/dgxie
   tag: latest