* Rebase (broken tests)
* Removed tables - refactored processAggregationDocs func
* Tests cleanup
* Nit - add space in percentile legend titles
* Fix labels naming - use metricAggType map
* Fix bug which appended same fields over and over again
* Replace test with dataframes
* Fix tests
* Add nolint:gocyclo - will need refactoring
* Move frames tags assignment
* Add failing test fo when ES server is booting up
* Revert "Add failing test fo when ES server is booting up"
This reverts commit fd14a1fd5e.
Co-authored-by: Elfo404 <me@giordanoricci.com>
* rename strategy
* Update pkg/tsdb/sqleng/sql_engine.go
Co-authored-by: Torkel Ödegaard <torkel@grafana.org>
* more strict constraints
* Fixed so that it works on multi series results
* only apply the logic when original query returns 3 fields
* removed part of comment
* Update mysql test
Co-authored-by: Torkel Ödegaard <torkel@grafana.org>
Co-authored-by: Torkel Ödegaard <torkel@grafana.com>
* Fix deleting labels and annotations
* Add test
* Keep no data and error start if not provided
* Allow setting interval and for to zero during rule updates
* Alerting: Implement /status for the notification system
Implements the necessary plumbing to have a /status endpoint on the
notification system.
* Add API examples
* Update API specs
* Update prometheus/common dependency
Co-authored-by: Sofia Papagiannaki <sofia@grafana.com>
* add accesscontrol action for stats read
* use accesscontrol middleware for stats route
* add fixed role with permissions to read sever stats
* add accesscontrol action for settings read
* use accesscontrol middleware for settings route
* add fixed role with permissions to read settings
* add accesscontrol tests for AdminGetSettings and AdminGetStats
* add ability to scope settings
* add tests for AdminGetSettings
* Add new accesscontrol action for ldap config reload
* Update ldapAdminEditRole with new ldap config reload permission
* wrap /ldap/reload with accesscontrol authorize middleware
* document new action and update fixed:ldap:admin:edit with said action
* add fake accesscontrol implementation for tests
* Add accesscontrol tests for ldap handlers
Co-authored-by: Ursula Kallio <73951760+osg-grafana@users.noreply.github.com>
Fixes panic/fatal error concurrent map writes in SQL data sources when multiple
queries are executed concurrently and you interpolate SQL query before executing it.
Fixes#35469
* only recurse a symbolic link if it is a directory
* added test for detecting valid plugins using lib dirs with symbolic links in them (like oracle)
* fix linting errors
* added extra checks as per code-review
* draft pr convert opentsdb response to dataframes
* Add test for parse response and fix go lint
* Add test case for create request
* Use go-cmp in test
* Remove comment
Co-authored-by: Ida Furjesova <ida.furjesova@grafana.com>
#31871 introduced support for configuring timeout in seconds
for HTTP data sources. That had a bug where backend expected
a numeric timeout value where it was actually stored as a
string. This should resolve this by requiring input to be
numbers, storing input as numeric and falling back to string
value if there's no numeric value.
Ref #31871
* fix sql annotation parsing for empty responses
* fix backend when no data returned
* add back frontend changes
Co-authored-by: Ying WANG <ying.wang@grafana.com>
* Fix dashboard alert and nootifier migration for MySQL
* Fix POSTing Alertmanager configuration if no current configuration exists
in case the default configuration has not be stored yet
or has failed to get stored
* Change CreatedAt field type
* Alerting: Expand `{{$labels.xyz}}` template in labels and annotations
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
* Fix annotation not updating for same alert
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
* Alerting: Do not hard fail on templating errors in channels
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
* Fix review
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
* add verbose version flag to list dependencies as well as the version
* Fix typo in the println message
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
Move QueryData method into backend plugin manager which HandleRequest uses to
query data from plugin SDK supported data sources. This allowed us to remove a lot
of code no longer needed.
Ref #21510
Co-authored-by: Will Browne <wbrowne@users.noreply.github.com>
When using mulit-dimensional Grafana managed alerts (e.g. SSE math) extract refIds values and labels so they can be shown in the notification and dashboards.
* Security: Update default content_security_policy_template
- Add 'strict-dynamic' back to script-src
- Add ws(s)://$ROOT_PATH to connect-src
- Change onEvent to on-event in angular templates to fix CSP issues in firefox.
- Add blob: to style-src
Threema Gateway supports two types of IDs: Basic IDs (where the
encryption is managed by the API server) and End-to-End IDs (where the
keys are managed by the user).
This plugin currently does not support End-to-End IDs (since it's much
more complex to implement, because the encryption needs to happen
locally). Add a few clarifications to the UI.
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
this should help Live to be enabled by default but still
do not affect setups with lots of simultenious users. To
properly handle many WS connections Grafana administrators
should tune infrastructure a bit - for example increase a
number of open files for a process. Will be in more details
in documentation.
* click out to gcom when config enabled
* set to false
* fix styling for uninstall
* remove advertising config + simplify callout URL
* add entry to configuration.md
* update config name
* update lingo
* Usage Stats: Rename service to use a more idiomatic name
* Usage Stats: Update MetricsFunc definition and implementations
* Revert "Usage Stats: Rename service to use a more idiomatic name"
This reverts commit 910ecce3e8.
* Usage Stats: Update MetricsFunc definition and implementations
* expose folder UID in dashboards API response, import dashboards into folders by folder UID
* handle bad folder UID as 400 error
* 12591:Add tests for request with folderUid
* Use more descriptive error status for missing folders
Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>
* return 400 when folder id is missing
* put error checking in the right place this time
* mention folderUid in the docs
* Clarify usage of folderUid and folderId when both present
Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>
* Capitalise UID
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* mention folder UID in the metadata for a GET response
Co-authored-by: Ida Furjesova <ida.furjesova@grafana.com>
Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
removes "rpc error: code = InvalidArgument desc =" like strings from error messages.
This came from old grpc stuff left from when SSE was a plugin (that probably should
not have been used even when it was a plugin)
The /api/ds/query and /api/tsdb/query endpoints extract the intervalMs field from
each query in the request, but it currently seems to be ignored, at
least for queries to a Prometheus datasource. This changes
GetIntervalFrom function to check for the presence of intervalMs in the
query model if interval is missing.
* starting to add eval logic.
* wip
* first version of test rule.
* reverted file.
* add info colum to result to show error or (with CC evalmatches)
* fix labels in evalmatch
* fix be test
* refactored using observables.
* moved widht/height div to outside panel rendere.
* adding docs api level.
* adding container styles to error div.
* increasing size of preview.
Co-authored-by: kyle <kyle@grafana.com>
* HTTP Client: Add `ResponseHeaderTimeout` - split from `DialContext` timeout
* Fixes according to reviewer's comments
* Use grafana-plugin-sdk-go v0.100.0
* [Alerting]: forbid viewers for updating rules if viewers can edit
check for CanSave instead of CanEdit
* Clear ngalert tables when deleting the folder
* Apply suggestions from code review
* Log failure to check save permission
Co-authored-by: gotjosh <josue@grafana.com>
* Migrate template variables straight into resource field,
Display error if unable to migrate
* Update workspace() template variable query function to return a resource URI
* update backend to support resource uris in workspace field
* don't load resource names for variables
* throw error when workspace migration returns no results
* update testDatasource to work with either resource URI or workspace GUID
* fix tests
* cleanup types just a little bit, as a treat
* Alerting: Opsgenie notification channel
This translate the opsgenie notification channel from the old alerting
system to the new alerting system with a few changes:
- The tag system has been replaced in favour of annotation.
- TBD
- TBD
Signed-off-by: Josue Abreu <josue@grafana.com>
* Fix template URL
* Bugfig: dont send resolved when autoClose is false
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
* Fix integration tests
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
* Fix URLs in all other channels
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>
Uses new httpclient package from grafana-plugin-sdk-go introduced
via grafana/grafana-plugin-sdk-go#328.
Replaces the GetHTTPClient, GetTransport, GetTLSConfig methods defined
on DataSource model.
Longer-term the goal is to migrate core HTTP backend data sources to use the
SDK contracts and using httpclient.Provider for creating HTTP clients and such.
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
* wip
* wip:
* ui work for resource picker
* disable rows when others are selected
* resource picker open button
* Azure Monitor: Connect to backend with real data (#34024)
* Connect to backend with real data
* Fixes from code review.
* WIP:Begin thinking about how to make queries with scope determined by the resource picker
* More fixes post code review.
* Fixes after rebasing
* Remove outdated todo
* AzureMonitor: Support any resource for Logs queries (#33762)
* Apply button for resource picker
* scroll table body
* secondary cancel button
* loading state for nested rows
* Display resource components in picker button
* fix tests
* fix icons
* move route function
* Migrate from workspace to resource uri for log analytics (#34337)
* reword backwards compat comment
* remove base url suffix
* fix lint error
* move migrations to seperate file
* cleanup
* update regex
* cleanup
* update plugin routes to use new azure auth type
* use AzureDataSourceInstanceSettings alias
Co-authored-by: Sarah Zinger <sarahzinger@users.noreply.github.com>
* Bar chart label positioning and sizing
* Dev dashbard
* Improve autosizing
* Remove sync option
* Unify text sizing options between stat-ish visualizations and bar chart
* Add simple categorical data scenario and update dev dashboard
* Remove unused options builder
* Add docs annotations
* Fix go lint
* Add discord notifier channel and test
* Correct payload
* remove print statement
* PR feedback and update due to changes in main
* Add discord notifier channel and test
* Correct payload
* remove print statement
* PR feedback and update due to changes in main
* update constructor and tests
* group imports sensibly
* Fix lint
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>
Rules/notifications/etc migration will now be activated with feature flag alone.
When the feature flag is enabled dashboard alerts are migrated into the system.
When the feature flag is removed, all migrated and newly created alerts in the new system are deleted.
* Determine Azure cloud based on authentication type
* Route resolution for clouds
* Fix tests
* Constants for cloud names
* move arg cloud route logic to routes.go
Co-authored-by: Erik Sundell <erik.sundell87@gmail.com>
* CSP: Relax default template, due to nonces not working
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
* CSP: Add back data: to img-src
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
* Add Azure Resource Graph in Azure Plugin
* fix lodash import
* Fix mock queries
* use "backend" sdk
* Address comments
* add converter for object type
* Query error should cause 400 & apply template var
* fix backend test & add documentation
* update image
* Address comments
* marshal body from map
* use interpolated query instead of raw query
* fix test
* filter out empty queries
* fix go linting problem
* use new query field language name
* improve variable tests
* add better tests for interpolate variable
Co-authored-by: joshhunt <josh@trtr.co>
Co-authored-by: Erik Sundell <erik.sundell87@gmail.com>
* force enable catalog based on backend config
* update comments
* chore(plugin-catalog): remove config page in favour of backend flag
* docs(plugin-catalog): update readme
Co-authored-by: Jack Westbrook <jack.westbrook@gmail.com>
* add support for handling preprocessors in the backend
* add preprocessor tests
* use uppercase for constants
* add super label component
* remove error message from query editor since its not working (probably cause onDataError doesnt work anymore)
* use cheat sheet instead of help
* add return type annotation for projects
* add support for preprocessing. replace segment comp with select. change components names and refactoring
* cleanup
* more pr feedback
* fix annotations editor
* rename aggregation component
* fix broken test
* remove unnecessary cast
* fix strict errors
* fix more strict errors
* remove not used prop
* update docs
* use same inline label for annotation editor
* fix react prop warning
* disable preprocessing for distribution types
* using new default values for reducer
* auto select 'rate' if metric kind is not gauge
* fix create label format
* pr feedback
* more pr feedback
* update images
* [Alerting]: Add sensugo notification channel
* Apply suggestions from code review
Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
* Do not include labels with concatenated rule UID and names
* Modifications after syncing with main
Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
When, and currently only when using a classic condition, evaluation information is added (which is like the EvalMatches from dashboard alerting).
This is returned via the API and can be included in notifications by reading the `__value__` label attached `.Alerts` in the template. It is a string.
* Alerting: Allow the notifier to log
The notifier upstream code uses go-kit as its logging library. The
grafana specific logger is not compatible with this API. In this PR, I
have created a wrapper that implements io.Writer to make them
compatible.
This patch adds metrics to support instrumenting the accesscontrols package.
It also instruments the accesscontrol evaluator and the permissions function.
Co-authored-by: Vardan Torosyan <vardants@gmail.com>
* add tests
* CloudWatch: Allow use of missing AWS namespaces using custom metrics
* CloudWatch: Allow use of missing AWS namespaces using custom metrics
* Devenv: add block for es 5.0, provisioned datasource & dashboard
* Trasnsform script property based on running ES version
* Handle different scripts format in BE
* Update dashboard_snapshot.go
This is to address: https://github.com/grafana/grafana/issues/33665
The key and deleteKey fields are not honoured when creating a snapshot with external:true set
* removed whitespace
Instead put in package folder but with package name suffixed with _test
This enables code coverage within the pkg while still allow the tests to operate from external to package perspective (only exported things).
* add uninstall flow
* add install flow
* small cleanup
* smaller-footprint solution
* cleanup + make bp start auto
* fix interface contract
* improve naming
* accept version arg
* ensure use of shared logger
* make installer a field
* add plugin decommissioning
* add basic error checking
* fix api docs
* making initialization idempotent
* add mutex
* fix comment
* fix test
* add test for decommission
* improve existing test
* add more test coverage
* more tests
* change test func to use read lock
* refactoring + adding test asserts
* improve purging old install flow
* improve dupe checking
* change log name
* skip over dupe scanned
* make test assertion more flexible
* remove trailing line
* fix pointer receiver name
* update comment
* add context to API
* add config flag
* add base http api test + fix update functionality
* simplify existing check
* clean up test
* refactor tests based on feedback
* add single quotes to errs
* use gcmp in tests + fix logo issue
* make plugin list testing more flexible
* address feedback
* fix API test
* fix linter
* undo preallocate
* Update docs/sources/administration/configuration.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* Update docs/sources/administration/configuration.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* Update docs/sources/administration/configuration.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* fix linting issue in test
* add docs placeholder
* update install notes
* Update docs/sources/plugins/marketplace.md
Co-authored-by: Marcus Olsson <marcus.olsson@hey.com>
* update access wording
* add more placeholder docs
* add link to more info
* PR feedback - improved errors, refactor, lock fix
* improve err details
* propagate plugin version errors
* don't autostart renderer
* add H1
* fix imports
* feat(bundled-plugins): introduce marketplace-app to the repo
* chore(marketplace-app): remove backend
* feat(marketplace): nav is only visible to admins
* feat(marketplace): use gnet api
* refactor(marketplace): move styles to theme2 move card concerns to card component
* feat(marketplace): introduce loaders, clean up styles
* refactor(marketplace): wip - debugging for api endpoints
* feat(grafana-ui): introduce height prop to Layout components
* refactor(marketplace): clean up org details component
* fix(marketplace): display search results without active filters
* refactor(marketplace): use grafana api for install/uninstall
* refactor(marketplace): remove pluginDir
* feat(marketplace): clean up Library page
* fix(plugins): get panel plugins from meta for newly installed plugins
* fix(marketplace): fix multiple renders of InstallControls when installing/uninstalling plugins
* refactor(marketplace): componentise the loader
* chore(marketplace): remove unsigned plugins option
* refactor(marketplace): remove includeUnsigned from codebase
* refactor(marketplace): prefer useStyles over useTheme
* docs(marketplace): remove changelog and update readme
* Apply suggestions from code review
Co-authored-by: Hugo Häggmark <hugo.haggmark@grafana.com>
Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>
* refactor(marketplace): prefer module over class for api
* refactor(marketplace): move updatePlugin to api
* refactor(marketplace): add PluginMeta to api to please TS
* feat(marketplace): always include pre-release in semver check
* chore(marketplace): remove redundant arch install code. backend handles it now
* feat(marketplace): add a link to browse page if library is empty
* refactor(marketplace): replace status with isLoading boolean for hooks
* refactor(marketplace): clean up async functions in InstallControls
* fix(marketplace): setInstalled false on successful uninstall
* include marketplace in bundled plugin test
Co-authored-by: Will Browne <will.browne@grafana.com>
Co-authored-by: Will Browne <wbrowne@users.noreply.github.com>
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
Co-authored-by: Marcus Olsson <marcus.olsson@hey.com>
Co-authored-by: Hugo Häggmark <hugo.haggmark@grafana.com>
Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>
* add uninstall flow
* add install flow
* small cleanup
* smaller-footprint solution
* cleanup + make bp start auto
* fix interface contract
* improve naming
* accept version arg
* ensure use of shared logger
* make installer a field
* add plugin decommissioning
* add basic error checking
* fix api docs
* making initialization idempotent
* add mutex
* fix comment
* fix test
* add test for decommission
* improve existing test
* add more test coverage
* more tests
* change test func to use read lock
* refactoring + adding test asserts
* improve purging old install flow
* improve dupe checking
* change log name
* skip over dupe scanned
* make test assertion more flexible
* remove trailing line
* fix pointer receiver name
* update comment
* add context to API
* add config flag
* add base http api test + fix update functionality
* simplify existing check
* clean up test
* refactor tests based on feedback
* add single quotes to errs
* use gcmp in tests + fix logo issue
* make plugin list testing more flexible
* address feedback
* fix API test
* fix linter
* undo preallocate
* Update docs/sources/administration/configuration.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* Update docs/sources/administration/configuration.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* Update docs/sources/administration/configuration.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* fix linting issue in test
* add docs placeholder
* update install notes
* Update docs/sources/plugins/marketplace.md
Co-authored-by: Marcus Olsson <marcus.olsson@hey.com>
* update access wording
* add more placeholder docs
* add link to more info
* PR feedback - improved errors, refactor, lock fix
* improve err details
* propagate plugin version errors
* don't autostart renderer
* add H1
* fix imports
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
Co-authored-by: Marcus Olsson <marcus.olsson@hey.com>
* Rendering: add CSV rendering support
* Rendering: save csv files into a separate folder
* add missing field
* Renderer: get filename from renderer plugin
* apply PR suggestions
* Rendering: remove old PhantomJS error
* Rendering: separate RenderCSV and Render functions
* fix alerting test
* Rendering: fix handling error in HTTP mode
* apply PR feedback
* Update pkg/services/rendering/http_mode.go
Co-authored-by: Joan López de la Franca Beltran <joanjan14@gmail.com>
* apply PR feedback
* Update rendering metrics with type label
* Rendering: return error if not able to parse header
* Rendering: update grpc generated file
* Rendering: use context.WithTimeout to render CSV too
Co-authored-by: Joan López de la Franca Beltran <joanjan14@gmail.com>
makes it so the feature flag can be turned on off, and the migration will be cleared and rerun. All existing NG alert rules, configuration settings, etc are removed when disabling the feature flag.
for https://github.com/grafana/alerting-squad/issues/142
Co-authored-by: Sofia Papagiannaki <sofia@grafana.com>
* Elasticsearch: use proper semver strings to identify ES version
* Update BE & tests
* refactor BE tests
* refactor isValidOption check
* update test
* Update pkg/tsdb/elasticsearch/client/client.go
Co-authored-by: Piotr Jamróz <pm.jamroz@gmail.com>
* Update pkg/tsdb/elasticsearch/client/search_request_test.go
Co-authored-by: Piotr Jamróz <pm.jamroz@gmail.com>
* Remove leftover FIXME comment
* Add new test cases for new version format
* Docs: add documentation about version dropdown
* Update docs/sources/datasources/elasticsearch.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* Update docs/sources/datasources/elasticsearch.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* Update docs/sources/datasources/elasticsearch.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* Update provisioning documentation
Co-authored-by: Piotr Jamróz <pm.jamroz@gmail.com>
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* WIP: intial structure
* Refactor: adds create library element endpoint
* Feature: adds delete library element
* wip
* Refactor: adds get api
* Refactor: adds get all api
* Refactor: adds patch api
* Refactor: changes to library_element_connection
* Refactor: add get connections api
* wip: in the middle of refactor
* wip
* Refactor: consolidating both api:s
* Refactor: points front end to library elements api
* Tests: Fixes broken test
* Fix: fixes delete library elements in folder and adds tests
* Refactor: changes order of tabs in manage folder
* Refactor: fixes so link does not cover whole card
* Update pkg/services/libraryelements/libraryelements.go
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
* Update pkg/services/libraryelements/libraryelements_permissions_test.go
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
* Update pkg/services/libraryelements/database.go
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
* Chore: changes after PR comments
* Update libraryelements.go
* Chore: updates after PR comments
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
* add parameter empty_scopes to override scope parameter with empty value and thus be able to authenticate against IdPs without scopes. Issue #27503
Update docs/sources/auth/generic-oauth.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* updated check according to feedback
* Update generic-oauth.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* add isolation level db configuration parameter
* add isolation_level to default.ini and sample.ini
* add note that only mysql supports isolation levels for now
* mention isolation_level in the documentation
* Update docs/sources/administration/configuration.md
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
* use a common way to redact sensitive values before logging them
* fix panic on missing testCase.err, simplify require checks
* fix a silly typo
* combine readConfig and buildConnectionString methods, as they are closely related
