improve locking of positions

Signed-off-by: Steven Sheehy <ssheehy@firescope.com>

* Add chunk_block_size option

Introduce by #464.

Signed-off-by: Xiang Dai <764524258@qq.com>

* fix white noise

Signed-off-by: Xiang Dai <764524258@qq.com>

* Bump up helm version

Signed-off-by: Xiang Dai <764524258@qq.com>

* support config chunk size

Signed-off-by: Xiang Dai <764524258@qq.com>

* fix lint

Signed-off-by: Xiang Dai <764524258@qq.com>

* review feedback

* Add target config

Support costomize target config.

Signed-off-by: Xiang Dai <764524258@qq.com>

* Update default value

Signed-off-by: Xiang Dai <764524258@qq.com>

* bump helm version

Signed-off-by: Xiang Dai <764524258@qq.com>

* Revert "Make sure the default for EnforceMetricName is 

 (#518)"

This reverts commit 199746a1.

* Fix overrides unmarshalling properly

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Update troubleshooting

- remove "no label" title
- add tracing part

Signed-off-by: Xiang Dai <764524258@qq.com>

* Add helm help

Signed-off-by: Xiang Dai <764524258@qq.com>

* Enable tracing loki in helm chart

Tracing support from #328, need to support config in helm chart

Signed-off-by: Xiang Dai <764524258@qq.com>

* Use camel case for variables

Signed-off-by: Xiang Dai <764524258@qq.com>

* update condition

Signed-off-by: Xiang Dai <764524258@qq.com>

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Make Loki url scheme configurable and add optional authentication in helm chart

* Added help text in README and changed propery names based on code review

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Lazy load chunks for queries.

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Add context to the lazy chunk calls

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Make sure labels are plumbed through

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Pre-load non-overlapping chunk iterators

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Review feedback

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Added example of usage API on Python

* fix link

Update helm docs

Helm: Allow custom loki config

create and update promtail-examples.md

Added option that loki service run as nodeport

Update troubleshooting doc

Changes to the library move the handling of symlinks and re-opening to the tail library.
fsnotify events are only used now to start new tailers for files not previously seen.

Add note about auth_enabled

Signed-off-by: ialidzhikov <i.alidjikov@gmail.com>

Signed-off-by: Xiang Dai <764524258@qq.com>

Signed-off-by: Xiang Dai <764524258@qq.com>

* Move live log tailing behind websocket on server

Live log tailing now requires client to just open a websocket and keep listening to it for getting live logs for matching query

* Fixed linting errors

* Unexported tailQuery querier method

* Added a delay in querying of logs to not miss delayed entries

* Renamed variable for better readability

* Some code refactoring suggested in PR review

* Fixed linter errors

* Code refactoring requested in PR review

* Disabling linting for writeHTTPErrorResponse since same value for an input is being passed from all function calls for now

* Removed a function which already existed

* Improved printing of log entries using cli and some other code refactoring

* Checking no-labels flag before printing log stream while tailing

Added option that loki service run as nodeport

rewrite exist example, and add more examples with descriptions

Signed-off-by: Xiang Dai <764524258@qq.com>