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توضیحات

Container managment software

ویژگی	مقدار
سیستم عامل	-
نام فایل	fission-0.1
نام	fission
نسخه کتابخانه	0.1
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Da_Blitz
ایمیل نویسنده	code@pocketnix.org
آدرس صفحه اصلی	http://blitz.works
آدرس اینترنتی	https://pypi.org/project/fission/
مجوز	MIT BSD

Fission ======== Fission is static job scheduling program designed to help you run workloads across multiple machines you have ssh access to. while primarily aimed at container based workloads, arbitrary jobs can be run and managed using fission accompanying tools will be provided for firewall generation and network setup as well as hooks to tie into existing ip allocation mechanisms Caveats ------- the static nature of fission means it is unable to respond to events such as nodes going down in real time like other software in the same space (mesos, kerbernatues, docker swarm). this can be mitigated to a degree by having your monitoring system invoke or trigger a run of fission on a remote machine. allowing the state of the system to be recalculated and adjusted as required Features --------- * Yaml files and symlinks * Static setup will not change things behind your back * great for small number of hosts or home setups * generate firewall policies * wire up networking * only requires ssh access * Audit existing setup and how it differs to desired setup Design Goals ------------ * Be simple in code, design and use * Only do what it should be doing * Be extensible * Be easy to introspect Terminology ----------- Like all container software out there, fission makes a mediocre attempt to stay in line with the terminology used by other solutions and invents new terms where appropriate to confuse users Nodes ##### Nodes are simply hosts you have ssh access to that run jobs. Nodes themselves can also be created from jobs for simulating topologies Jobs #### Jobs are the workload that fission is managing and running across multiple nodes for you. this is generally a container workload but may also be simple program Facts ##### Facts are used for selecting which nodes are suitable candidates for a particular job, eg some nodes may export a HAS_SSD fact that a high performance disk IO heavy job (eg mysql) may want to select on Extras ###### If you are using symlinks to templates that expand on the filename (eg collection of jobs) then there may be occasions where you want to override specific facts (eg code or machine upgrades). normally this would involve updating the config file but as this is symlinked you end up affecting all hosts. the solution for this is a '.extras' file containing additional information that is overplayed on the top of the config to allow further customization allowing you to override a subset or all hosts with information to complete the migration before updating the main template Tags #### tags are used to limit or select a subset of nodes or jobs, eg for listing purposes. tags can also be used for allocation in a similar manner to facts above however the use of facts is recommended. The exception to this rule being geographical placement (ie only allocate on rack37) if you need to negate a tag, prepending it with '-' can be used to indicate that you want to remove an object from selection if it has this tag. for cli parsing, arguments starting with '-' are interpreted as flags and as such if you only need to specify negation an empty tag can be placed at the beginning of the list to prevent the tag from being interpreted as a cli flag eg ",-physical,-slow" All jobs are tagged with the 'job' tag and all nodes with the 'node' tag to make selection easier (eg all nodes but a subset of jobs or a subset of nodes and all jobs). this can also be used with negation to 'carve away' unwanted nodes instead of adding them in. All jobs and nodes are tagged with their hostname prepended with '@' this is to facilitate the selection of individual nodes that may not have a unique tag eg "@mymachine1,@mymachine2,@mymachine30" Filters ####### Filters are the counterpart to the tag. These are used by jobs to limit placement decisions. This may be helpful for compliance (credit card processing only on nodes tagged 'pci-compliant') or to limit jobs to geographical region Filters may or may not be used to select based on facts, this is currently undecided due to complexity (ie only on mem > 300MB) Testing ------- fission uses py.test for testing and supports tox for building the environments. if py.test is not installed system-wide for python 3 then build a virtual environment with the following commands (python 3.4 or newer) $ python3.4 -m venv venv $ . venv/bin/activate $ pip install pytest running the tests is then as simple as $ . venv/bin/activate $ py.test

نحوه نصب

نصب پکیج whl fission-0.1:

pip install fission-0.1.whl

نصب پکیج tar.gz fission-0.1:

pip install fission-0.1.tar.gz