Switched all file operations from ioutil package to io and os packages due to the deprecation of ioutil in Go 1.16. This change contributes to the maintainability of the codebase, ensuring it's up-to-date with the current standard library. Additionally, implemented usage of filepath.Join for platform-independent file paths.
* chore: add integration test for log pipelines being recommended to agents on connection
* chore: agentConf.Manager as AgentConfigProvider
* feat: logparsingpipelines as an AgentFeature
* chore: some cleanup
* feat: update agentConf init in ee query-service
* chore: more cleanup and move opamp/logspipeline -> logparsingpipeline/collector_config.go
* chore: some more cleanup
* chore: set agent.RemoteConfig after broadcasting conf to all agents
* chore: add test scenario for post remote conf application
* feat: add interface for opamp.AgentConfigProvider
* feat: add iface and plumbing for generating recommended conf in opamp/agent
* feat: get opamp server config provider tests started
* chore: add test scenario for agent connection without a config recommendation
* chore: add test scenario for agent connection with a config recommendation
* chore: add test for validating config deployment status gets reported
* chore: add test for rolling out latest config recommendations when config changes
* chore: wrap up opamp server lifecycle tests
* chore: some tests cleanup
* chore: get all tests passing
* chore: update opamp server init logic in ee query service
* chore: some cleanup
* chore: some final cleanup
* chore: add integration test for log parsing pipelines validation
* chore: add helpers for creating unauthorized, unavailable & not found api errors
* chore: return *model.APIError from logpipeline and agentConf functions
* chore: some cleanup
* chore: some more cleanup
* chore: one more round of cleanups
