Dockerfile.debug

# Directories in this file are referenced from the root of the project not this folder
# This file is intended to be called from the root like so:
# docker build -t grafana/promtail -f clients/cmd/promtail/Dockerfile.debug .

FROM grafana/loki-build-image:0.34.0 AS build
ARG GOARCH="amd64"
COPY . /src/loki
WORKDIR /src/loki
RUN make clean && make BUILD_IN_CONTAINER=false PROMTAIL_JOURNAL_ENABLED=true promtail-debug


FROM alpine:3.21.3
RUN apk add --update --no-cache ca-certificates tzdata
COPY --from=build /src/loki/clients/cmd/promtail/promtail-debug /usr/bin/promtail-debug
COPY --from=build /usr/bin/dlv /usr/bin/dlv
COPY clients/cmd/promtail/promtail-local-config.yaml /etc/promtail/local-config.yaml
COPY clients/cmd/promtail/promtail-docker-config.yaml /etc/promtail/config.yml

# Expose 40000 for delve
EXPOSE 40000

# Allow delve to run on Alpine based containers.
RUN apk add --no-cache libc6-compat

# Run delve, ending with -- because we pass params via kubernetes, per the docs:
#   Pass flags to the program you are debugging using --, for example:`
#   dlv exec ./hello -- server --config conf/config.toml`
ENTRYPOINT ["/usr/bin/dlv", "--listen=:40000", "--headless=true", "--continue", "--accept-multiclient", "--api-version=2", "exec", "/usr/bin/promtail-debug", "--"]
CMD ["-config.file=/etc/promtail/config.yml"]