Kibana Extremely slow Start Up Time on Openshift/Kubernetes while Optimizing and caching bundles

Here is what I have for my Dockerfile - I am using UBI, changed to microdnf

#
# ** THIS IS AN AUTO-GENERATED FILE **
#

################################################################################
# Build stage 0
# Extract Kibana and make various file manipulations.
################################################################################
FROM registry.access.redhat.com/ubi8/ubi-minimal:latest AS prep_files
# Add tar and gzip
RUN microdnf update -y && microdnf install -y tar gzip findutils && microdnf clean all
RUN cd /opt && curl --retry 8 -s -L -O https://artifacts.elastic.co/downloads/kibana/kibana-7.6.2-linux-x86_64.tar.gz && cd -
RUN mkdir /usr/share/kibana
WORKDIR /usr/share/kibana
RUN tar --strip-components=1 -zxf /opt/kibana-7.6.2-linux-x86_64.tar.gz
# Ensure that group permissions are the same as user permissions.
# This will help when relying on GID-0 to run Kibana, rather than UID-1000.
# OpenShift does this, for example.
# REF: https://docs.openshift.org/latest/creating_images/guidelines.html
RUN chmod -R g=u /usr/share/kibana
RUN find /usr/share/kibana -type d -exec chmod g+s {} \;

################################################################################
# Build stage 1
# Copy prepared files from the previous stage and complete the image.
################################################################################
FROM registry.access.redhat.com/ubi8/ubi-minimal:latest
EXPOSE 5601

# Add Reporting dependencies.
RUN microdnf update -y && microdnf install -y fontconfig freetype shadow-utils findutils && microdnf clean all

# Add an init process, check the checksum to make sure it's a match
RUN curl -L -o /usr/local/bin/dumb-init https://github.com/Yelp/dumb-init/releases/download/v1.2.2/dumb-init_1.2.2_amd64
RUN echo "37f2c1f0372a45554f1b89924fbb134fc24c3756efaedf11e07f599494e0eff9  /usr/local/bin/dumb-init" | sha256sum -c -
RUN chmod +x /usr/local/bin/dumb-init


# Bring in Kibana from the initial stage.
COPY --from=prep_files --chown=1000:0 /usr/share/kibana /usr/share/kibana
WORKDIR /usr/share/kibana
RUN ln -s /usr/share/kibana /opt/kibana

ENV ELASTIC_CONTAINER true
ENV PATH=/usr/share/kibana/bin:$PATH

# Set some Kibana configuration defaults.
COPY --chown=1000:0 config/kibana.yml /usr/share/kibana/config/kibana.yml

# Add the launcher/wrapper script. It knows how to interpret environment
# variables and translate them to Kibana CLI options.
COPY --chown=1000:0 bin/kibana-docker /usr/local/bin/

# Ensure gid 0 write permissions for OpenShift.
RUN chmod g+ws /usr/share/kibana && find /usr/share/kibana -gid 0 -and -not -perm /g+w -exec chmod g+w {} \;

# Provide a non-root user to run the process.
RUN groupadd --gid 1000 kibana && useradd --uid 1000 --gid 1000 --home-dir /usr/share/kibana --no-create-home kibana
USER kibana

LABEL org.label-schema.schema-version="1.0" org.label-schema.vendor="Elastic" org.label-schema.name="kibana" org.label-schema.version="7.6.2" org.label-schema.url="https://www.elastic.co/products/kibana" org.label-schema.vcs-url="https://github.com/elastic/kibana" org.label-schema.license="Elastic License" org.label-schema.usage="https://www.elastic.co/guide/en/kibana/index.html" org.label-schema.build-date="2020-03-26T07:47:43.654Z" license="Elastic License"

ENTRYPOINT ["/usr/local/bin/dumb-init", "--"]

CMD ["/usr/local/bin/kibana-docker"]

Built it: docker build --tag discuss-245203:7.6.2 .

Ran it: docker run --rm --network host -v "/home/tyler/elastic/dockerfiles/kibana/kibana.yml:/usr/share/kibana/config/kibana.yml" discuss-245203:7.6.2

Here is what I have for the kibana.yml which is based off yours:

server.name: kibana01
server.host: "0.0.0.0"
elasticsearch.hosts: "http://127.0.0.1:9200"
elasticsearch.username: elastic
elasticsearch.password: changeme
xpack.security.enabled: true
xpack.security.encryptionKey: foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo

With this I have verified that it's not running the optimize step. I really think either the optimize directory is getting removed, or a plugin is being disabled, etc. Something is being missed.

Can you provide reproduction steps to reproduce?