An internal Norfield risk-control service, shipped as one Docker image: norfield-crypto:1.

One image. One tag. norfield-crypto:1.

Norfield Crypto Risk Control runs as a Docker container built from the image norfield-crypto:1. There is nothing to install on the host beyond a container runtime. The system's full internal title is withheld on this page; what is documented here is how it is packaged and operated.

Docker container Image: norfield-crypto:1 Internal system Tag-pinned builds

How it is packaged

Everything below follows from one recorded fact: this system is delivered as a container image, not as a host install.

Single image, single tag

The system is distributed as norfield-crypto:1. The tag identifies the exact build you are running, so hosts can be compared by tag instead of by inspecting files on disk.

Same build on every host

A container started from the same image runs the same bytes on a laptop, a staging box, or a production node. Host-to-host drift is removed from the list of things to debug.

Standard Docker lifecycle

Start, stop, restart, and remove are ordinary docker commands. No custom control script is needed to bring the service up or take it down.

Isolated process space

The container has its own filesystem and process namespace. Its dependencies live inside the image rather than on the host, so it does not compete with other software on the machine.

Logs through the runtime

Whatever the process writes to stdout and stderr is readable with docker logs and can be routed by the logging driver you configure on the container.

Replace, do not patch

Upgrade and rollback are the same operation: stop the container, start one from the tag you want. The previous image stays on disk until you prune it.

Bring it up in four steps

1

Pull the image

Fetch norfield-crypto:1 from the registry the owning team points you at. Pulling explicitly, rather than letting the run command do it, means you see the download finish before anything starts.

2

Start the container

Start it detached with a fixed container name and a restart policy, so the container returns after a host reboot and every later command can refer to it by name.

3

Check that it is up

Confirm the container is running with docker ps and read the first output with docker logs. The image reference shown by docker ps is the record of which build is live.

4

Replace to change builds

To move to another build, pull that tag, remove the running container, and start a new one from the pulled image. Nothing inside a running container is edited in place.

A normal session

root@host — norfield-crypto
$ docker pull norfield-crypto:1
1: Pulling from norfield-crypto
Status: Image is up to date for norfield-crypto:1
$ docker run -d --name norfield-crypto --restart unless-stopped norfield-crypto:1
9f3c1b7a2e04d5c8b1a6f0e39d7c4b28a5f1e6c0d3b9a7f2e4c8b1d6a0f3e9c7
$ docker ps --filter name=norfield-crypto
norfield-crypto:1 Up 3 minutes norfield-crypto
$ docker logs --tail 20 norfield-crypto
$

Compose definition

1services:
2 norfield-crypto:
3 image: norfield-crypto:1
4 container_name: norfield-crypto
5 restart: unless-stopped
6 logging:
7 driver: json-file
8 options:
9 max-size: 10m
10 max-file: 3
A compose file that pins the tag and keeps the container running across reboots.

Host install vs container image

Installed on the host
Run as norfield-crypto:1
Dependencies sit on the host and drift between machines over time.
Dependencies are baked into the image and identical everywhere it runs.
The running version is whatever the last person installed.
The running version is the image tag, visible in docker ps.
Upgrades edit files in place; rolling back means reinstalling.
Upgrades start a new container; rolling back starts the old image again.
Logs land wherever the process was configured to write them.
Logs go to stdout and stderr and are read with docker logs.
Removing the service leaves files scattered on the host.
Removing the container leaves the host as it was.

Day-to-day operations

Pull the tag, then start it detached

Pull norfield-crypto:1, then start a detached container with a fixed name and a restart policy. Naming the container keeps every later command explicit instead of depending on a generated name.

Questions operators ask

What does this system actually do?

The published record for norfield-crypto-risk-control-3622524 lists one fact: it runs as a Docker container from the image norfield-crypto:1. The title is redacted and no description is recorded, so this page does not describe its behaviour. Ask the owning team for that.

Which registry holds norfield-crypto:1?

Not recorded here. Use the registry the owning team points you at; the image name and tag are the same either way.

Does it need ports or volumes?

No port or volume requirements are published for this system, so the commands on this page start it without them. Add whatever the owning team specifies before running it anywhere that matters.

Can I run more than one container from this image?

Docker allows it, provided each container has a distinct name. Whether the service itself tolerates multiple instances is not something the recorded facts answer.

How do I know which build is running?

docker ps shows the image reference for each container, and docker inspect resolves it to an image ID. Compare that ID against the build you intended to deploy.

About this system

norfield-crypto-risk-control-3622524 is an internal Norfield backend system. Its full title is redacted here and no description is published with it, so this page sticks to the one recorded fact: the system runs as a Docker container built from the image norfield-crypto:1. Everything described here follows from that packaging: the lifecycle commands, the compose file, the upgrade path. For what the service does, which ports and volumes it expects, and where the image is hosted, contact the team that owns it.