Hey guys,
i am running on Ubuntu 20.04
nomad v1.0.4
just created a simple local cluster,
3 servers and 3 clients.
output of command : nomad server members
Name Address Port Status Leader Protocol Build Datacenter Region
nomadm1.global 192.168.14.151 4648 alive false 2 1.0.4 dc1 global
nomadm2.global 192.168.14.152 4648 alive true 2 1.0.4 dc1 global
nomadm3.global 192.168.14.153 4648 alive false 2 1.0.4 dc1 global
cat /etc/nomad.d/nomad.hcl (on a client node)
data_dir = “/opt/nomad/data”
bind_addr = “192.168.14.155”
client {
enabled = true
servers = ["192.168.14.151:4647","192.168.14.152:4647","192.168.14.153:4647"]
}
cat /etc/nomad.d/nomad.hcl (on a server node ,each server has the other servers in ‘retry_join’)
data_dir = “/opt/nomad/data”
bind_addr = “192.168.14.152”
server {
enabled = true
bootstrap_expect = 3
server_join {
retry_join = ["192.168.14.151:4648","192.168.14.153:4648"]
}
}
i used bind_addr becuase when trying to join nodes without it they would join with the docker bridge interface.
now i can see all nodes in the management interface.
trying to run any job results with this error
Failed to start container 3db72093caeb1b654e5d3d543b77edc113700e733a75e873f24ce33dd038fcf5: API error (500): error while creating mount source path '/opt/nomad/data/alloc/ebd04c8d-02b5-1006-75ff-7611cb38a903/alloc': mkdir /opt/nomad: read-only file system
My goal is to create an offline cluster which i use local images for my jobs, so i have another web server that i can direct the artifact to,
currenty my job hcl looks like this:
job "test1" {
# Spread the tasks in this job between us-west-1 and us-east-1.
datacenters = ["dc1"]
# Run this job as a "service" type. Each job type has different
# properties. See the documentation below for more examples.
type = "service"
# Specify this job to have rolling updates, two-at-a-time, with
# 30 second intervals.
update {
stagger = "30s"
max_parallel = 2
}
# A group defines a series of tasks that should be co-located
# on the same client (host). All tasks within a group will be
# placed on the same host.
group "webs" {
# Specify the number of these tasks we want.
count = 3
network {
# This requests a dynamic port named "http". This will
# be something like "46283", but we refer to it via the
# label "http".
port "http" {}
}
# The service block tells Nomad how to register this service
# with Consul for service discovery and monitoring.
service {
# This tells Consul to monitor the service on the port
# labelled "http". Since Nomad allocates high dynamic port
# numbers, we use labels to refer to them.
port = "http"
check {
type = "http"
path = "/health"
interval = "10s"
timeout = "2s"
}
}
# Create an individual task (unit of work). This particular
# task utilizes a Docker container to front a web application.
task "frontend" {
# Specify the driver to be "docker". Nomad supports
# multiple drivers.
driver = "docker"
artifact {
source = "http://192.168.14.250/webappv1.0.1.tar"
# Configuration is specific to each driver.
}
config {
load = "webappv1.0.1.tar"
image = "webappv1.0.1"
}
resources {
cpu = 500 # MHz
memory = 128 # MB
}
}
}
}
any help would be gladly appreciated !
