Merge branch 'develop' of https://gitlab.com/teraflow-h2020/controller into feat/device-oc-acl-candidate

- minor formatting

fix: broken links in Automation and Policy README files

See merge request teraflow-h2020/controller!186

Signed-off-by: Georgios Katsikas <katsikas.gp@gmail.com>

doc(policy): update README

See merge request teraflow-h2020/controller!184

doc(automation): update README

See merge request teraflow-h2020/controller!183

feat: ztpUpdate RPC is also event-driven

See merge request teraflow-h2020/controller!182

Signed-off-by: Georgios Katsikas <katsikas.gp@gmail.com>

Signed-off-by: Georgios Katsikas <katsikas.gp@gmail.com>

This commit provides support for automated invokation
of the ztpUpdate RPC upon a DEVICE_UPDATED event.
When this event is triggered, the Automation component
fetches the associated device configuration and applies
it to the device.

Signed-off-by: Georgios Katsikas <katsikas.gp@gmail.com>

fix: running config rules should not contain exceptions

See merge request teraflow-h2020/controller!180

style: changes in parent Driver API documentation

See merge request teraflow-h2020/controller!181

Device/Monitoring component:

See merge request teraflow-h2020/controller!178

Including script to build, test and report

See merge request teraflow-h2020/controller!171

Signed-off-by: Georgios Katsikas <katsikas.gp@gmail.com>

Signed-off-by: Georgios Katsikas <katsikas.gp@gmail.com>

- device: added environemnt variable to prevent loading drivers other than emulated
- monitoring: set environment variable to force loading only emulated driver during unitary tests of monitoring

refactor(policy): integrate monitoring protobuf updates

See merge request teraflow-h2020/controller!167

Slice component

See merge request teraflow-h2020/controller!176

- clean-up old files
- update requirements.in

- Added timestamp to logs
- Implemented DeleteSlice method
- Enhanced create/update slice logic

Multiple changes in Context component:

See merge request teraflow-h2020/controller!175

Common:
- Extended context proto with 2 methods: UnsetService and UnsetSlice

Context component:
- Added timestamp to logs
- Added methods UnsetService and UnsetSlice to Context client
- Implemented methods UnsetService and UnsetSlice in Context servicer
- Resolved conflict between service and slice entities with constraints and configrules

PathComp component improvements

See merge request teraflow-h2020/controller!174

Merge branch 'feat/pathcomp-component-frontend' of https://gitlab.com/teraflow-h2020/controller into feat/pathcomp-component

Merge branch 'feat/pathcomp-component-backend' of https://gitlab.com/teraflow-h2020/controller into feat/pathcomp-component

- Added timestamp to logs
- Improved algorithm execution logs
- Added basic support for multi-layer path computation
- Improved KDisjointPath Algorithm with basic multi-layer support
- Minor improvements in backend request composition
- Removed unneeded code for unitary tests
- Added OLS-flavoured unitary test scenario

- Increased number of supported topology nodes.
- To be improved with dynamic memory.

Context/Device/Service/PathComp/tests/WebUI component fixes and improvements

See merge request teraflow-h2020/controller!173

- renamed device type OPTICAL_LINE_SYSTEM to OPEN_LINE_SYSTEM

Common:
- renamed device type OPTICAL_LINE_SYSTEM to OPEN_LINE_SYSTEM
- added DATACENTER and EMULATED_DATACENTER device types.

Context:
- modified service constraints for test object to use nomenclature "metric[unit]"
- corrected ConstraintModel dump methods

Device:
- uncommented dump methods in database ContextModel and TopologyModel

OFC'22 / OECCPSC'22 tests:
- renamed device type OPTICAL_LINE_SYSTEM to OPEN_LINE_SYSTEM

WebUI:
OFC'22 / OECCPSC'22 tests:
- renamed device type OPTICAL_LINE_SYSTEM to OPEN_LINE_SYSTEM

- added object factory method for emulated datacenters

- Fixed instantiation parameters in Dockerfile