mirror of
https://github.com/k3s-io/kubernetes.git
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Cleanup fluentd-gcp image, rebase on debian-base
This commit is contained in:
Tim St. Clair
parent
17375fc59f
commit
4b4c3e4944
@ -20,43 +20,39 @@
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# scope and that the Logging API has been enabled for the project
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# in the Google Developer Console.
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FROM gcr.io/google_containers/ubuntu-slim:0.6
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FROM gcr.io/google-containers/debian-base-amd64:0.1
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# Disable prompts from apt
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ENV DEBIAN_FRONTEND noninteractive
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COPY Gemfile /Gemfile
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# Install build tools
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RUN apt-get -qq update && \
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apt-get install -y -qq curl ca-certificates gcc make bash sudo && \
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apt-get install -y -qq --reinstall lsb-base lsb-release && \
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# Install logging agent and required gems
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/usr/bin/curl -sSL https://toolbelt.treasuredata.com/sh/install-ubuntu-xenial-td-agent2.sh | sh && \
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sed -i -e "s/USER=td-agent/USER=root/" -e "s/GROUP=td-agent/GROUP=root/" /etc/init.d/td-agent && \
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td-agent-gem install --no-document fluent-plugin-record-reformer -v 0.8.2 && \
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td-agent-gem install --no-document fluent-plugin-systemd -v 0.0.5 && \
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td-agent-gem install --no-document fluent-plugin-google-cloud -v 0.5.6 && \
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td-agent-gem install --no-document fluent-plugin-detect-exceptions -v 0.0.4 && \
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td-agent-gem install --no-document fluent-plugin-prometheus -v 0.2.1 && \
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# Remove build tools
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apt-get remove -y -qq gcc make && \
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apt-get autoremove -y -qq && \
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apt-get clean -qq && \
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# Remove unnecessary files
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rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
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/opt/td-agent/embedded/share/doc \
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/opt/td-agent/embedded/share/gtk-doc \
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/opt/td-agent/embedded/lib/postgresql \
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/opt/td-agent/embedded/bin/postgres \
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/opt/td-agent/embedded/share/postgresql \
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/etc/td-agent/td-agent.conf
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# 1. Install & configure dependencies.
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# 2. Install fluentd via ruby.
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# 3. Remove build dependencies.
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# 4. Cleanup leftover caches & files.
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RUN BUILD_DEPS="make gcc g++ libc-dev ruby-dev" \
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&& clean-install $BUILD_DEPS \
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ca-certificates \
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libjemalloc1 \
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liblz4-1 \
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ruby \
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&& echo 'gem: --no-document' >> /etc/gemrc \
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&& gem install --file Gemfile \
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&& apt-get purge -y --auto-remove \
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-o APT::AutoRemove::RecommendsImportant=false \
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$BUILD_DEPS \
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&& rm -rf /tmp/* \
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/var/lib/apt/lists/* \
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/usr/lib/ruby/gems/*/cache/*.gem \
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/var/log/* \
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/var/tmp/*
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# Copy the Fluentd configuration file for logging Docker container logs.
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COPY fluent.conf /etc/td-agent/td-agent.conf
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# Copy the entrypoint for the container
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COPY fluent.conf /etc/fluent/fluent.conf
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COPY run.sh /run.sh
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# Expose prometheus metrics.
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EXPOSE 80
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ENV LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1
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# Start Fluentd to pick up our config that watches Docker container logs.
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CMD /run.sh $FLUENTD_ARGS
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9
cluster/addons/fluentd-gcp/fluentd-gcp-image/Gemfile
Normal file
9
cluster/addons/fluentd-gcp/fluentd-gcp-image/Gemfile
Normal file
@ -0,0 +1,9 @@
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source 'https://rubygems.org'
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gem 'fluentd', '~>0.12.32'
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gem 'fluent-plugin-record-reformer', '~>0.8.3'
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gem 'fluent-plugin-systemd', '~>0.0.7'
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gem 'fluent-plugin-google-cloud', '~>0.5.6'
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gem 'fluent-plugin-detect-exceptions', '~>0.0.5'
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gem 'fluent-plugin-prometheus', '~>0.2.1'
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gem 'oj', '~>2.18.1'
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@ -25,8 +25,8 @@
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.PHONY: build push
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PREFIX=gcr.io/google_containers
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TAG = 1.40
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PREFIX=gcr.io/google-containers
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TAG = 2.0
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build:
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docker build --pull -t $(PREFIX)/fluentd-gcp:$(TAG) .
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@ -6,6 +6,20 @@ This image is designed to be used as part of the [Kubernetes](https://github.com
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cluster bring up process. The image resides at DockerHub under the name
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[kubernetes/fluentd-gcp](https://registry.hub.docker.com/u/kubernetes/fluentd-gcp/).
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# Usage
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The image is built with its own set of plugins which you can later use
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in the configuration. The set of plugin is enumerated in a Gemfile in the
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image's directory. You can find details about fluentd configuration on the
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[official site](http://docs.fluentd.org/articles/config-file).
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In order to configure fluentd image, you should mount a directory with `.conf`
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files to `/etc/fluent/config.d` or add files to that directory by building
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a new image on top. All `.conf` files in the `/etc/fluent/config.d` directory
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will be included to the final fluentd configuration.
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Command line arguments to the fluentd executable are passed
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via environment variable `FLUENTD_ARGS`.
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[]()
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@ -1,395 +1,8 @@
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# This configuration file for Fluentd / td-agent is used
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# to watch changes to Docker log files that live in the
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# directory /var/lib/docker/containers/ and are symbolically
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# linked to from the /var/log directory using names that capture the
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# pod name and container name. These logs are then submitted to
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# Google Cloud Logging which assumes the installation of the cloud-logging plug-in.
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#
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# Example
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# =======
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# A line in the Docker log file might like like this JSON:
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#
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# {"log":"2014/09/25 21:15:03 Got request with path wombat\n",
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# "stream":"stderr",
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# "time":"2014-09-25T21:15:03.499185026Z"}
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#
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# The record reformer is used to write the tag to focus on the pod name
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# and the Kubernetes container name. For example a Docker container's logs
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# might be in the directory:
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# /var/lib/docker/containers/997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b
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# and in the file:
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# 997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b-json.log
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# where 997599971ee6... is the Docker ID of the running container.
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# The Kubernetes kubelet makes a symbolic link to this file on the host machine
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# in the /var/log/containers directory which includes the pod name and the Kubernetes
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# container name:
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# synthetic-logger-0.25lps-pod_default-synth-lgr-997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b.log
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# ->
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# /var/lib/docker/containers/997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b/997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b-json.log
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# The /var/log directory on the host is mapped to the /var/log directory in the container
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# running this instance of Fluentd and we end up collecting the file:
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# /var/log/containers/synthetic-logger-0.25lps-pod_default-synth-lgr-997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b.log
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# This results in the tag:
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# var.log.containers.synthetic-logger-0.25lps-pod_default-synth-lgr-997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b.log
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# The record reformer is used is discard the var.log.containers prefix and
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# the Docker container ID suffix and "kubernetes." is pre-pended giving the
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# final tag which is ingested into Elasticsearch:
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# kubernetes.synthetic-logger-0.25lps-pod_default-synth-lgr
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# This makes it easier for users to search for logs by pod name or by
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# the name of the Kubernetes container regardless of how many times the
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# Kubernetes pod has been restarted (resulting in a several Docker container IDs).
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# This is the root config file, which only includes components of the actual configuration
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# Prevent fluentd from handling records containing its own logs. Otherwise
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# it can lead to an infinite loop, when error in sending one message generates
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# another message which also fails to be sent and so on.
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# Do not collect fluentd's own logs to avoid infinite loops.
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<match fluent.**>
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type null
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</match>
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# Example:
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# {"log":"[info:2016-02-16T16:04:05.930-08:00] Some log text here\n","stream":"stdout","time":"2016-02-17T00:04:05.931087621Z"}
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<source>
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type tail
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format json
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time_key time
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path /var/log/containers/*.log
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pos_file /var/log/gcp-containers.log.pos
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time_format %Y-%m-%dT%H:%M:%S.%N%Z
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tag reform.*
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read_from_head true
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</source>
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<filter reform.**>
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type parser
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format /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<log>.*)/
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reserve_data true
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suppress_parse_error_log true
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key_name log
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</filter>
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<match reform.**>
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type record_reformer
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enable_ruby true
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tag raw.kubernetes.${tag_suffix[4].split('-')[0..-2].join('-')}
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</match>
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# Detect exceptions in the log output and forward them as one log entry.
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<match raw.kubernetes.**>
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@type copy
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<store>
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@type prometheus
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<metric>
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type counter
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name logging_line_count
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desc Total number of lines generated by application containers
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<labels>
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tag ${tag}
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</labels>
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</metric>
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</store>
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<store>
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@type detect_exceptions
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remove_tag_prefix raw
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message log
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stream stream
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multiline_flush_interval 5
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max_bytes 500000
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max_lines 1000
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</store>
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</match>
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# Example:
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# 2015-12-21 23:17:22,066 [salt.state ][INFO ] Completed state [net.ipv4.ip_forward] at time 23:17:22.066081
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<source>
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type tail
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format /^(?<time>[^ ]* [^ ,]*)[^\[]*\[[^\]]*\]\[(?<severity>[^ \]]*) *\] (?<message>.*)$/
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time_format %Y-%m-%d %H:%M:%S
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path /var/log/salt/minion
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pos_file /var/log/gcp-salt.pos
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tag salt
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</source>
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# Example:
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# Dec 21 23:17:22 gke-foo-1-1-4b5cbd14-node-4eoj startupscript: Finished running startup script /var/run/google.startup.script
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<source>
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type tail
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format syslog
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path /var/log/startupscript.log
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pos_file /var/log/gcp-startupscript.log.pos
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tag startupscript
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</source>
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# Examples:
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# time="2016-02-04T06:51:03.053580605Z" level=info msg="GET /containers/json"
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# time="2016-02-04T07:53:57.505612354Z" level=error msg="HTTP Error" err="No such image: -f" statusCode=404
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<source>
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type tail
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format /^time="(?<time>[^)]*)" level=(?<severity>[^ ]*) msg="(?<message>[^"]*)"( err="(?<error>[^"]*)")?( statusCode=($<status_code>\d+))?/
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path /var/log/docker.log
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pos_file /var/log/gcp-docker.log.pos
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tag docker
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</source>
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# Example:
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# 2016/02/04 06:52:38 filePurge: successfully removed file /var/etcd/data/member/wal/00000000000006d0-00000000010a23d1.wal
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<source>
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type tail
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# Not parsing this, because it doesn't have anything particularly useful to
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# parse out of it (like severities).
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format none
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path /var/log/etcd.log
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pos_file /var/log/gcp-etcd.log.pos
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tag etcd
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</source>
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# Multi-line parsing is required for all the kube logs because very large log
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# statements, such as those that include entire object bodies, get split into
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# multiple lines by glog.
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# Example:
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# I0204 07:32:30.020537 3368 server.go:1048] POST /stats/container/: (13.972191ms) 200 [[Go-http-client/1.1] 10.244.1.3:40537]
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<source>
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type tail
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format multiline
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multiline_flush_interval 5s
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format_firstline /^\w\d{4}/
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format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
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time_format %m%d %H:%M:%S.%N
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path /var/log/kubelet.log
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pos_file /var/log/gcp-kubelet.log.pos
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tag kubelet
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</source>
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# Example:
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# I1118 21:26:53.975789 6 proxier.go:1096] Port "nodePort for kube-system/default-http-backend:http" (:31429/tcp) was open before and is still needed
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<source>
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type tail
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format multiline
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multiline_flush_interval 5s
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format_firstline /^\w\d{4}/
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format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
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time_format %m%d %H:%M:%S.%N
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path /var/log/kube-proxy.log
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pos_file /var/log/gcp-kube-proxy.log.pos
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tag kube-proxy
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</source>
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# Example:
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# I0204 07:00:19.604280 5 handlers.go:131] GET /api/v1/nodes: (1.624207ms) 200 [[kube-controller-manager/v1.1.3 (linux/amd64) kubernetes/6a81b50] 127.0.0.1:38266]
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<source>
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type tail
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format multiline
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multiline_flush_interval 5s
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format_firstline /^\w\d{4}/
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format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
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time_format %m%d %H:%M:%S.%N
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path /var/log/kube-apiserver.log
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pos_file /var/log/gcp-kube-apiserver.log.pos
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tag kube-apiserver
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</source>
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# Example:
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# 2017-02-09T00:15:57.992775796Z AUDIT: id="90c73c7c-97d6-4b65-9461-f94606ff825f" ip="104.132.1.72" method="GET" user="kubecfg" as="<self>" asgroups="<lookup>" namespace="default" uri="/api/v1/namespaces/default/pods"
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# 2017-02-09T00:15:57.993528822Z AUDIT: id="90c73c7c-97d6-4b65-9461-f94606ff825f" response="200"
|
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<source>
|
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type tail
|
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format multiline
|
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multiline_flush_interval 5s
|
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format_firstline /^\S+\s+AUDIT:/
|
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# Fields must be explicitly captured by name to be parsed into the record.
|
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# Fields may not always be present, and order may change, so this just looks
|
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# for a list of key="\"quoted\" value" pairs separated by spaces.
|
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# Unknown fields are ignored.
|
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# Note: We can't separate query/response lines as format1/format2 because
|
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# they don't always come one after the other for a given query.
|
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# TODO: Maybe add a JSON output mode to audit log so we can get rid of this?
|
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format1 /^(?<time>\S+) AUDIT:(?: (?:id="(?<id>(?:[^"\\]|\\.)*)"|ip="(?<ip>(?:[^"\\]|\\.)*)"|method="(?<method>(?:[^"\\]|\\.)*)"|user="(?<user>(?:[^"\\]|\\.)*)"|groups="(?<groups>(?:[^"\\]|\\.)*)"|as="(?<as>(?:[^"\\]|\\.)*)"|asgroups="(?<asgroups>(?:[^"\\]|\\.)*)"|namespace="(?<namespace>(?:[^"\\]|\\.)*)"|uri="(?<uri>(?:[^"\\]|\\.)*)"|response="(?<response>(?:[^"\\]|\\.)*)"|\w+="(?:[^"\\]|\\.)*"))*/
|
||||
time_format %FT%T.%L%Z
|
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path /var/log/kube-apiserver-audit.log
|
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pos_file /var/log/gcp-kube-apiserver-audit.log.pos
|
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tag kube-apiserver-audit
|
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</source>
|
||||
|
||||
# Example:
|
||||
# I0204 06:55:31.872680 5 servicecontroller.go:277] LB already exists and doesn't need update for service kube-system/kube-ui
|
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<source>
|
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type tail
|
||||
format multiline
|
||||
multiline_flush_interval 5s
|
||||
format_firstline /^\w\d{4}/
|
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format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
|
||||
time_format %m%d %H:%M:%S.%N
|
||||
path /var/log/kube-controller-manager.log
|
||||
pos_file /var/log/gcp-kube-controller-manager.log.pos
|
||||
tag kube-controller-manager
|
||||
</source>
|
||||
|
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# Example:
|
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# W0204 06:49:18.239674 7 reflector.go:245] pkg/scheduler/factory/factory.go:193: watch of *api.Service ended with: 401: The event in requested index is outdated and cleared (the requested history has been cleared [2578313/2577886]) [2579312]
|
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<source>
|
||||
type tail
|
||||
format multiline
|
||||
multiline_flush_interval 5s
|
||||
format_firstline /^\w\d{4}/
|
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format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
|
||||
time_format %m%d %H:%M:%S.%N
|
||||
path /var/log/kube-scheduler.log
|
||||
pos_file /var/log/gcp-kube-scheduler.log.pos
|
||||
tag kube-scheduler
|
||||
</source>
|
||||
|
||||
# Example:
|
||||
# I1104 10:36:20.242766 5 rescheduler.go:73] Running Rescheduler
|
||||
<source>
|
||||
type tail
|
||||
format multiline
|
||||
multiline_flush_interval 5s
|
||||
format_firstline /^\w\d{4}/
|
||||
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
|
||||
time_format %m%d %H:%M:%S.%N
|
||||
path /var/log/rescheduler.log
|
||||
pos_file /var/log/gcp-rescheduler.log.pos
|
||||
tag rescheduler
|
||||
</source>
|
||||
|
||||
# Example:
|
||||
# I0603 15:31:05.793605 6 cluster_manager.go:230] Reading config from path /etc/gce.conf
|
||||
<source>
|
||||
type tail
|
||||
format multiline
|
||||
multiline_flush_interval 5s
|
||||
format_firstline /^\w\d{4}/
|
||||
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
|
||||
time_format %m%d %H:%M:%S.%N
|
||||
path /var/log/glbc.log
|
||||
pos_file /var/log/gcp-glbc.log.pos
|
||||
tag glbc
|
||||
</source>
|
||||
|
||||
# Example:
|
||||
# I0603 15:31:05.793605 6 cluster_manager.go:230] Reading config from path /etc/gce.conf
|
||||
<source>
|
||||
type tail
|
||||
format multiline
|
||||
multiline_flush_interval 5s
|
||||
format_firstline /^\w\d{4}/
|
||||
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
|
||||
time_format %m%d %H:%M:%S.%N
|
||||
path /var/log/cluster-autoscaler.log
|
||||
pos_file /var/log/gcp-cluster-autoscaler.log.pos
|
||||
tag cluster-autoscaler
|
||||
</source>
|
||||
|
||||
# Logs from systemd-journal for interesting services.
|
||||
<source>
|
||||
type systemd
|
||||
filters [{ "_SYSTEMD_UNIT": "docker.service" }]
|
||||
pos_file /var/log/gcp-journald-docker.pos
|
||||
read_from_head true
|
||||
tag docker
|
||||
</source>
|
||||
|
||||
<source>
|
||||
type systemd
|
||||
filters [{ "_SYSTEMD_UNIT": "kubelet.service" }]
|
||||
pos_file /var/log/gcp-journald-kubelet.pos
|
||||
read_from_head true
|
||||
tag kubelet
|
||||
</source>
|
||||
|
||||
# Prometheus monitoring
|
||||
<source>
|
||||
@type prometheus
|
||||
port 80
|
||||
</source>
|
||||
|
||||
<source>
|
||||
@type prometheus_monitor
|
||||
</source>
|
||||
|
||||
<match fluent.**>
|
||||
@type null
|
||||
</match>
|
||||
|
||||
# We use 2 output stanzas - one to handle the container logs and one to handle
|
||||
# the node daemon logs, the latter of which explicitly sends its logs to the
|
||||
# compute.googleapis.com service rather than container.googleapis.com to keep
|
||||
# them separate since most users don't care about the node logs.
|
||||
<match kubernetes.**>
|
||||
@type copy
|
||||
|
||||
<store>
|
||||
@type google_cloud
|
||||
|
||||
# Set the buffer type to file to improve the reliability and reduce the memory consumption
|
||||
buffer_type file
|
||||
buffer_path /var/log/fluentd-buffers/kubernetes.containers.buffer
|
||||
# Set queue_full action to block because we want to pause gracefully
|
||||
# in case of the off-the-limits load instead of throwing an exception
|
||||
buffer_queue_full_action block
|
||||
# Set the chunk limit conservatively to avoid exceeding the GCL limit
|
||||
# of 10MiB per write request.
|
||||
buffer_chunk_limit 2M
|
||||
# Cap the combined memory usage of this buffer and the one below to
|
||||
# 2MiB/chunk * (6 + 2) chunks = 16 MiB
|
||||
buffer_queue_limit 6
|
||||
# Never wait more than 5 seconds before flushing logs in the non-error case.
|
||||
flush_interval 5s
|
||||
# Never wait longer than 30 seconds between retries.
|
||||
max_retry_wait 30
|
||||
# Disable the limit on the number of retries (retry forever).
|
||||
disable_retry_limit
|
||||
# Use multiple threads for processing.
|
||||
num_threads 2
|
||||
</store>
|
||||
<store>
|
||||
@type prometheus
|
||||
|
||||
<metric>
|
||||
type counter
|
||||
name logging_entry_count
|
||||
desc Total number of log entries generated by application containers
|
||||
<labels>
|
||||
tag ${tag}
|
||||
component container
|
||||
</labels>
|
||||
</metric>
|
||||
</store>
|
||||
</match>
|
||||
|
||||
# Keep a smaller buffer here since these logs are less important than the user's
|
||||
# container logs.
|
||||
<match **>
|
||||
@type copy
|
||||
|
||||
<store>
|
||||
@type google_cloud
|
||||
|
||||
detect_subservice false
|
||||
buffer_type file
|
||||
buffer_path /var/log/fluentd-buffers/kubernetes.system.buffer
|
||||
buffer_queue_full_action block
|
||||
buffer_chunk_limit 2M
|
||||
buffer_queue_limit 2
|
||||
flush_interval 5s
|
||||
max_retry_wait 30
|
||||
disable_retry_limit
|
||||
num_threads 2
|
||||
</store>
|
||||
<store>
|
||||
@type prometheus
|
||||
|
||||
<metric>
|
||||
type counter
|
||||
name logging_entry_count
|
||||
desc Total number of log entries generated by system components
|
||||
<labels>
|
||||
tag ${tag}
|
||||
component system
|
||||
</labels>
|
||||
</metric>
|
||||
</store>
|
||||
</match>
|
||||
@include /etc/fluent/config.d/*.conf
|
||||
|
||||
@ -14,16 +14,16 @@
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
# These steps must be executed once the host /var and /lib volumes have
|
||||
# been mounted, and therefore cannot be done in the docker build stage.
|
||||
|
||||
# For systems without journald
|
||||
mkdir -p /var/log/journal
|
||||
|
||||
if [ ! -z "`ls /host/lib/libsystemd* 2>/dev/null`" ]
|
||||
then
|
||||
# Copy host libsystemd into image to avoid compatibility issues.
|
||||
if [ ! -z "$(ls /host/lib/libsystemd* 2>/dev/null)" ]; then
|
||||
rm /lib/x86_64-linux-gnu/libsystemd*
|
||||
cp -a /host/lib/libsystemd* /lib/x86_64-linux-gnu/
|
||||
fi
|
||||
|
||||
LD_PRELOAD=/opt/td-agent/embedded/lib/libjemalloc.so
|
||||
RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR=0.9
|
||||
|
||||
/usr/sbin/td-agent $@
|
||||
/usr/local/bin/fluentd $@
|
||||
|
||||
Loading…
Reference in New Issue
Block a user