fleet alternatives and similar packages
Based on the "Other Software" category.
Alternatively, view fleet alternatives based on common mentions on social networks and blogs.
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limetext
Lime Text is a powerful and elegant text editor primarily developed in Go that aims to be a Free and open-source software successor to Sublime Text. -
Gor
Http traffic replication tool, for replaying traffic from production to stage/dev environments in real-time. -
rkt
An App Container runtime that integrates with init systems, is compatible with other container formats like Docker, and supports alternative execution engines like KVM. -
heka
universal tool for data processing from Mozilla. Large collection of built-in plugins. Extendable via Go and Lua plugin API. -
Duplicacy
A cross-platform network and cloud backup tool based on the idea of lock-free deduplication. -
Circuit
Circuit is a programmable platform-as-a-service (PaaS) and/or Infrastructure-as-a-Service (IaaS), for management, discovery, synchronization and orchestration of services and hosts comprising cloud applications. -
scc
Sloc Cloc and Code, a very fast accurate code counter with complexity calculations and COCOMO estimates. -
lgo
Interactive Go programming with Jupyter. It supports code completion, code inspection and 100% Go compatibility. -
mockingjay
Fake HTTP servers and consumer driven contracts from one configuration file. You can also make the server randomly misbehave to help do more realistic performance tests. -
Gebug
A tool that makes debugging of Dockerized Go applications super easy by enabling Debugger and Hot-Reload features, seamlessly. -
ipe
An open source Pusher server implementation compatible with Pusher client libraries written in GO.
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README
Deprecation warning
fleet is no longer developed or maintained by CoreOS. After February 1, 2018, a fleet container image will continue to be available from the CoreOS Quay registry, but will not be shipped as part of Container Linux. CoreOS instead recommends Kubernetes for all clustering needs.
The project exists here for historical reference. If you are interested in the future of the project and taking over stewardship, please contact [email protected]
fleet - a distributed init system
fleet ties together systemd and etcd into a simple distributed init system. Think of it as an extension of systemd that operates at the cluster level instead of the machine level.
This project is quite low-level, and is designed as a foundation for higher order orchestration. fleet is a cluster-wide elaboration on systemd units, and is not a container manager or orchestration system. fleet supports basic scheduling of systemd units across nodes in a cluster. Those looking for more complex scheduling requirements or a first-class container orchestration system should check out Kubernetes. The [fleet and kubernetes comparison table][fleet-vs-k8s] has more information about the two systems.
Current status
The fleet project is no longer maintained.
As of v1.0.0, fleet has seen production use for some time and is largely considered stable. However, there are various known and unresolved issues, including [scalability limitations][fleet-scaling] with its architecture. As such, it is not recommended to run fleet clusters larger than 100 nodes or with more than 1000 services.
Using fleet
Launching a unit with fleet is as simple as running fleetctl start:
$ fleetctl start examples/hello.service
Unit hello.service launched on 113f16a7.../172.17.8.103
The fleetctl start command waits for the unit to get scheduled and actually start somewhere in the cluster.
fleetctl list-unit-files tells you the desired state of your units and where they are currently scheduled:
$ fleetctl list-unit-files
UNIT HASH DSTATE STATE TMACHINE
hello.service e55c0ae launched launched 113f16a7.../172.17.8.103
fleetctl list-units exposes the systemd state for each unit in your fleet cluster:
$ fleetctl list-units
UNIT MACHINE ACTIVE SUB
hello.service 113f16a7.../172.17.8.103 active running
Supported Deployment Patterns
fleet is not intended to be an all-purpose orchestration system, and as such supports only a few simple deployment patterns:
- Deploy a single unit anywhere on the cluster
- Deploy a unit globally everywhere in the cluster
- Automatic rescheduling of units on machine failure
- Ensure that units are deployed together on the same machine
- Forbid specific units from colocation on the same machine (anti-affinity)
- Deploy units to machines only with specific metadata
These patterns are all defined using [custom systemd unit options][unit-files].
Getting Started
Before you can deploy units, fleet must be [deployed and configured][deploy-and-configure] on each host in your cluster. (If you are running CoreOS, fleet is already installed.)
After you have machines configured (check fleetctl list-machines), get to work with the [client][using-the-client.md].
Building
fleet must be built with Go 1.5+ on a Linux machine. Simply run ./build and then copy the binaries out of bin/ directory onto each of your machines. The tests can similarly be run by simply invoking ./test.
If you're on a machine without Go 1.5+ but you have Docker installed, run ./build-docker to compile the binaries instead.
Project Details
API
The fleet API uses JSON over HTTP to manage units in a fleet cluster. See the [API documentation][api-doc] for more information.
Release Notes
See the releases tab for more information on each release.
License
fleet is released under the Apache 2.0 license. See the [LICENSE][license] file for details.
Specific components of fleet use code derivative from software distributed under other licenses; in those cases the appropriate licenses are stipulated alongside the code.
*Note that all licence references and agreements mentioned in the fleet README section above
are relevant to that project's source code only.