version: bump - 0.3.1

[3Hren]

• Break: massive protocol breakage.
  All components with the same version are guaranteed to work, while otherwise - are not.
• Added: distributed tracing and audit.
  This quite large addition includes utilities for ease debugging and finding out what the hell
  is going on: audit logs and distributed tracing.
  Now all server components are constructed with audit logs interceptor, which writes a record
  when an RPC request finishes. It includes: time spent, tracing info (new feature), peer
  wallet etc.
• Added: improved the gateway by allowing several reals under the same virtual service (feat: improve router by allowing several reals #363).
  Each internal Docker port can now be exposed into several external to avoid ambiguity in the
  case of complex containers which run more than one network service.
• Added: auto-completion for the sonmcli (aux: add autocomplete for the sonmcli #373).
• Added: auto-refreshing orders in the Market by heart beating (feat: TouchOrders Method introduced #384).
• Added: extended deal info (Feature: extended deal info #386).
  Hub now collects an extended info for deal: deal id, order's resources, running tasks, task
  history.
• Added: collecting Prometheus metrics with Graphana examples.
• Added: network volumes support.
  Introducing container volumes support. Currently there is only CIFS support, but it will be
  extended later. Volume configuration now can be specified in the task spec.
• Added: GPU tuners now can check if the required GPU is present on a system.
• Changed: all prices are now kept internally as a big int.
• Changed: merged order.yaml into a slot.yaml (feature: remove order.yaml #380).
• Changed: allowing to publish only public IP addresses via special mode for the Locator (feat: only_public_ips mode for locator #381).
• Changed: split proposing deal (refactor: split proposing deal, fix bugs #389).
  This change finally splits proposing a deal into the two methods: proposing and approving.
  Pending orders now lives in a shelter. This entity is managed by passive timer, cleaning up
  unapproved orders. Also approving deals requires wallet authorization.
• Changed: multiple Hub endpoints now can be specified in the Worker's config (feat: multiple hub endpoints for miner config #392).
• Changed: make OpenCL errors eye-candy (fix: make OpenCL errors eye-candy #400).
• Changed: check ETH balance before republishing order (feat: check ETH balance before republishing order #420).
• Changed: temporarily disable SINGLE_GPU slot param (fix: disable SINGLE_GPU slot param #423).
  This deactivates an ability to sell/buy a separate GPUs, leaving a choice: none or all.
• Fixed: price validations during proposing deal (fix: price validations during proposing deal #356).
• Fixed: all wallet addresses should now correctly be printed as a hex.
• Fixed: cancelling an order now stops processing loop (fix: CancelOrder now stops processing loop #361).
• Fixed: forbidding removing ask orders via market api (fix: forbids removing ask orders via market api #362).
• Fixed: no longer uppercasing the env var keys (fix: do not uppercasing the env var keys #372).
• Fixed: correct gas price for closing deal (fix: gas price for closing deal #374).
• Fixed: check topic length before parsing pending deals (fix: check topic length before parsing #377).
• Fixed: the Node should now properly close its connections to Hubs, preventing fd leak (fix: closing hub connections #378).
• Fixed: check whether an IP is either loopback or link-local before publishing (fix: check if IP is loopback or unicast #382).
• Fixed: thread-safety by race condition elimination (fix: protect handler's private fields with mutex and getters #383).
• Fixed: hardware collection now correctly informs about errors via logs (Fix/hw logs #385).
• Fixed: the Locator now rejects announcements without ports (fix: locator rejects announcements without ports #388).
• Fixed: check whether we can use OpenCL to determine GPU on a platform (fix: check if we can use openCL to determine GPU on a platform #391).
• Fixed: workers should now be correctly closed without hanging.
• Fixed: compare order durations during proposing deal.
• Fixed: republish orders on a market after freeing a deal.
• Fixed: show error about the balance if there is not enough balance (fix: show error about balance if there is no balance #398).
• Fixed: the Node should now properly cancel unapproved deal (fix: cancel unapproved deal #410).
• Fixed: properly allocate and restrict CPUs using cgroups in tasks (fix: properly allocate CPUs in tasks #414).
• Fixed: proper cleaning up expired deals (fix: proper cleaning up expired deals #418).
• Fixed: do not remove container after commit (fix: do not remove container after commit #416).
  This allows to fetch logs and pull the container unless the associated deal is alive.
• Fixed: Hub should now less often cause segmentation error while synchronizing with the
  cluster (fix: segmentation fault in cluster #441).
• Fixed: workers should now properly connect to all Hubs (fix: miner connects to all hubs #444).
• Fixed: only leader serves clients (feat: only leader serves clients #447).
  This includes that only leader's client endpoints are announced.

[codecov-io]

Codecov Report

Merging #452 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #452   +/-   ##
=======================================
  Coverage   25.15%   25.15%           
=======================================
  Files          87       87           
  Lines        7223     7223           
=======================================
  Hits         1817     1817           
  Misses       5212     5212           
  Partials      194      194

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[sokel]

Need to fork deals contract for some reasons

[3Hren]

Still shouldn't be merged until until consensus reached.