Create Docker volumes on AWS, supported by all the features and performance of Elastic Block Store. Convoy, an open-source Docker volume driver, can snapshot, backup, and restore Docker volumes anywhere. proc:/host/proc, /etc/docker/plugins:/etc/docker/plugins subscribes :run. It is a Docker volume plugin created by Rancher for managing persistent container volumes. When all service traffic in an infrastructure flows via an Envoy mesh, it becomes easy to visualize problem areas via consistent observability, tune overall performance, and add substrate features in a single place. dockerimage rancher/convoy-agent do tag v0.9.0 action :pull end. Built on the learnings of solutions such as NGINX, HAProxy, hardware load balancers, and cloud load balancers, Envoy runs alongside every application and abstracts the network by providing common features in a platform-agnostic manner.
#Convoy plugin docker software#
Originally built at Lyft, Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures. build a Software factory using VMs, Docker and now CaaS but, hopefully, this should also make sense for applications that are modular and configurable. According to Docker, volume plugins enable engine deployments to be integrated with external storage systems and data volumes to persist beyond the lifetime of a single engine host. It is simply an orders of magnitude larger problem to network and debug a set of intertwined distributed services versus a single monolithic application. # END INIT INFO dir = "/usr/local/bin" cmd = "convoy daemon -drivers vfs -driver-opts vfs.path=/mnt/docker/volumes" user = "root" name = "convoy" pid_file = "/var/run/$name.pid" stdout_log = "/var/log/$name.log" stderr_log = "/var/log/$name.As on the ground microservice practitioners quickly realize, the majority of operational problems that arise when moving to a distributed architecture are ultimately grounded in two areas: networking and observability.
Use a Docker volume plugin, for instance Convoy plugin. #!/bin/sh # BEGIN INIT INFO # Provides: # Required-Start: $remote_fs $syslog # Required-Stop: $remote_fs $syslog # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start daemon at boot time # Description: Enable service provided by daemon. Mount the NFS onto your host machine, then run container with volume option ( -v ).
#Convoy plugin docker driver#
called ebs-volume uses the convoy docker volume plugin by rancher. Lets start the service: sudo rbd-docker-plugin -create -userdocker -pooldocker & The driver writes a socket under /run/docker/plugins/rbd. Its also good to note that our NFS Server will be a single point of failure, therefore its also good to look at a Distributed Volume like GlusterFS, XtreemFS, Ceph, etc. This essentially means that we will have a NFS Volume, when the service gets created on Docker Swarm, the cluster creates these volumes with path mapping, so when a container gets spawned, restarted, scaled etc, the container that gets started on the new node will be aware of the volume, and will get the data that its expecting.
In this post we will setup Rancher’s Convoy Storage Plugin with NFS, to provide data persistence in Docker Swarm.
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