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* Single node as a StatefulSet in k8s - uses bigchaindb/bigchaindb:0.9.1 * Updating README * rdb, mdb as stateful services * [WIP] bdb as a statefulset * [WIP] bdb w/ rdb and bdb w/ mdb backends - does not work as of now * Split mdb & bdb into separate pods + enhancements * discovery of the mongodb service by the bdb pod by using dns name. * using separate storage classes to map 2 different volumes exposed by the mongo docker container; one for /data/db (dbPath) and the other for /data/configdb (configDB). * using the `persistentVolumeReclaimPolicy: Retain` in k8s pvc. However, this seems to be unsupported in Azure and the disks still show a reclaim policy of `delete`. * mongodb container runs the `mongod` process as user `mongodb` and group `mongodb. The corresponding `uid` and `gid` for the `mongod` process is 999 and 999 respectively. When the constinaer runs on a host with a mounted disk, the writes fail, when there is no user with uid 999. To avoid this, I use the docker provided feature of --cap-add=FOWNER in k8s. This bypasses the uid and gid permission checks during writes and allows writes. Ref: https://docs.docker.com/engine/reference/run/#runtime-privilege-and-linux-capabilities * Delete redundant k8s files, add cluster deletion steps. * Single node as a StatefulSet in k8s - uses bigchaindb/bigchaindb:0.9.1 * Updating README * rdb, mdb as stateful services * [WIP] bdb as a statefulset * [WIP] bdb w/ rdb and bdb w/ mdb backends - does not work as of now * Split mdb & bdb into separate pods + enhancements * discovery of the mongodb service by the bdb pod by using dns name. * using separate storage classes to map 2 different volumes exposed by the mongo docker container; one for /data/db (dbPath) and the other for /data/configdb (configDB). * using the `persistentVolumeReclaimPolicy: Retain` in k8s pvc. However, this seems to be unsupported in Azure and the disks still show a reclaim policy of `delete`. * mongodb container runs the `mongod` process as user `mongodb` and group `mongodb. The corresponding `uid` and `gid` for the `mongod` process is 999 and 999 respectively. When the constinaer runs on a host with a mounted disk, the writes fail, when there is no user with uid 999. To avoid this, I use the docker provided feature of --cap-add=FOWNER in k8s. This bypasses the uid and gid permission checks during writes and allows writes. Ref: https://docs.docker.com/engine/reference/run/#runtime-privilege-and-linux-capabilities * Delete redundant k8s files, add cluster deletion steps. * Documentation: running a single node with distinct mongodb and bigchaindb pods on k8s * Updates as per @ttmc's comments
90 lines
2.0 KiB
YAML
90 lines
2.0 KiB
YAML
#####################################################
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# This config file uses bdb v0.9.1 with bundled rdb #
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#####################################################
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apiVersion: v1
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kind: Service
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metadata:
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name: bdb-service
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namespace: default
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labels:
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name: bdb-service
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spec:
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selector:
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app: bdb
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ports:
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- port: 9984
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targetPort: 9984
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name: bdb-http-api
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- port: 8080
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targetPort: 8080
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name: bdb-rethinkdb-api
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type: LoadBalancer
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---
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apiVersion: apps/v1beta1
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kind: StatefulSet
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metadata:
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name: bdb
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namespace: default
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spec:
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serviceName: bdb
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replicas: 1
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template:
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metadata:
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name: bdb
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labels:
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app: bdb
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annotations:
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pod.beta.kubernetes.io/init-containers: '[
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{
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"name": "bdb091-configure",
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"image": "bigchaindb/bigchaindb:0.9.1",
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"command": ["bigchaindb", "-y", "configure", "rethinkdb"],
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"volumeMounts": [
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{
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"name": "bigchaindb-data",
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"mountPath": "/data"
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}
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]
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}
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]'
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spec:
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terminationGracePeriodSeconds: 10
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containers:
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- name: bdb091-server
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image: bigchaindb/bigchaindb:0.9.1
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args:
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- -c
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- /data/.bigchaindb
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- start
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 9984
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hostPort: 9984
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name: bdb-port
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protocol: TCP
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volumeMounts:
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- name: bigchaindb-data
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mountPath: /data
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resources:
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limits:
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cpu: 200m
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memory: 768Mi
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livenessProbe:
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httpGet:
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path: /
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port: 9984
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initialDelaySeconds: 15
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timeoutSeconds: 10
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readinessProbe:
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httpGet:
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path: /
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port: 9984
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initialDelaySeconds: 15
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timeoutSeconds: 10
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restartPolicy: Always
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volumes:
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- name: bigchaindb-data
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hostPath:
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path: /disk/bigchaindb-data
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