Greetings former colleagues,
When I run fly console on my Rails app, it crashes. Why? OOM. I don’t know it at the time because there’s no error message, but I eventually get an email informing me that I indeed ran out of memory.
There’s no documentation on configuring the fly.toml file to boot the console with an appropriate amount of memory. I have to remember to run fly console —vm-memory 2048 to boot without incident, which I never remember.
Please make fly console work out of the box without crashing for Rails apps by allocating as much memory as the fly.toml
Here’s my fly.toml file. You’ll see I’ve attempted to configure the vms with 2gb of memory.
# fly.toml app configuration file generated for terminalwire on 2024-10-02T10:22:34-07:00
#
# See https://fly.io/docs/reference/configuration/ for information about how to use this file.
#
app = 'terminalwire'
primary_region = 'sjc'
console_command = '/rails/bin/rails console'
[build]
[env]
CANONICAL_HOST = "terminalwire.com"
[[mounts]]
source = 'data'
destination = '/data'
[http_service]
internal_port = 3000
force_https = true
auto_stop_machines = 'stop'
auto_start_machines = true
min_machines_running = 2
processes = ['app']
[checks]
[checks.status]
port = 3000
type = 'http'
interval = '10s'
timeout = '2s'
grace_period = '5s'
method = 'GET'
path = '/up'
protocol = 'http'
tls_skip_verify = false
[checks.status.headers]
X-Forwarded-Proto = 'https'
[[vm]]
memory = '2gb'
cpu_kind = 'shared'
cpus = 2
[[statics]]
guest_path = '/rails/public'
url_prefix = '/'
[deploy]
release_command = "./bin/rails db:prepare"
Cheers mates
.