docker pull grafana/loki

{traceId='467242cf-6ab0-4824-a0d7-20a85f402154'} | json

http://localhost:8080/hello?name=hhhffsghddd

http://localhost:3000/explore

Log browser
{app="name_IS_UNDEFINED"}

{traceId='fdead198-adf2-4e3f-aa7c-a03462be2aff'} | json

"traceId": "(\w{8}(-\w{4}){3}-\w{12})"

datasourceUid: my_jaeger_uid
          matcherRegex: "traceId=(\\w+)"
          name: traceId
          # url will be interpreted as query for the datasource
          url: '$${__value.raw}'
          # optional for URL Label to set a custom display label for the link.
          urlDisplayLabel: 'View Trace'