kubernetes docker for mac mount filesystem

Kubernetes Docker Mount Filesystem Update Every Container

The Kubernetes volumes docs dont say anything about Google Cloud Storage drives: github.comGoogleCloudPlatformkubernetesblobrelease-1.0docs.

For now, it looks all very exciting However, Im running into a problem: Im hosting my cluster on GCE and I need some mechanism to share storage between two pods - the continous integration server and my application server.

NFS would be perfect, but seems to require special build options for the kubernetes cluster.

There are multiple use cases where Id just like to have one volume and hook it up to multiple pods (with write access).

Heres what eventually answered the question in title: stackoverflow.comquestions37649541 That is use AssessMode: ReadWriteMany.

One of the fundamental design patterns that continues to come up quite often in MSA is the proper encapsulation of your services, which also includes its data.

Multi-service access to data is an anti-pattern akin to global variables in OOP.

Kubernetes Docker Mount Filesystem Update Every Container

Writing directly to a shared disk means that youd need to update every container if you change your log directory structure etc or decided to add extra functionality like emails on errors.

When I first started with Kubernetes the shared storage issue was something I struggled with for a while until I realised that it was the incorrect way of doing things.

Im now working on a system with 30 services and it scares me to think how hard it would have been if each service had the ability to reach inside other services data.

There are no special build options to get NFS working in Kube.

But first how to share storage if you already have some volumes set up.

Otherwise youd need to make sure that all the pods are scheduled to the node with that volume.

That is, if you want to consume NFS you need to setup NFS on all nodes in K8s cluster.

If you want to consume Ceph, you need to setup Ceph cluster and so on.

It wouldnt be harder than provisioning other volume types and will consume much less cpumemorydisk resources.

Only how to use it.

Kubernetes doesnt have functionality needed to share volumes.

This gives you full random readwrite access to files, unlike GCS which only supports uploaddownload.

Have you tried Google Cloud Storage You might even be able to use the FUSE adapter to map it like a network disk.

How would I connect this to Kubernetes (as a volume) As I understand it, my only options are GCE disks (which doesnt support parallel write access) and glusterFS (which seems to complicated).

I assumed that shared storage would be a common use case for kubernetes clusters.

That way all logs from each pod are collected into a single place.

Having it mount to each node is good because pods do not run on designated nodes, so its best to centralize it in that case.

Kubernetes Docker For Mac Mount Filesystem