etcd is a distributed key-value store designed to securely store data across a cluster. etcd is widely used in production on account of its reliability, fault-tolerance and ease of use.
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$ docker run -it --name Etcd bitnami/etcd$ curl -LO https://raw.githubusercontent.com/bitnami/bitnami-docker-etcd/master/docker-compose.yml
$ docker-compose up- Bitnami closely tracks upstream source changes and promptly publishes new versions of this image using our automated systems.
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Deploying Bitnami applications as Helm Charts is the easiest way to get started with our applications on Kubernetes. Read more about the installation in the Bitnami Etcd Chart GitHub repository.
Bitnami containers can be used with Kubeapps for deployment and management of Helm Charts in clusters.
Non-root container images add an extra layer of security and are generally recommended for production environments. However, because they run as a non-root user, privileged tasks are typically off-limits. Learn more about non-root containers in our docs.
Learn more about the Bitnami tagging policy and the difference between rolling tags and immutable tags in our documentation page.
3.5,3.5-debian-10,3.5.4,3.5.4-debian-10-r4,latest(3.5/debian-10/Dockerfile)3.4,3.4-debian-10,3.4.18,3.4.18-debian-10-r29(3.4/debian-10/Dockerfile)3.3,3.3-debian-10,3.3.27,3.3.27-debian-10-r28(3.3/debian-10/Dockerfile)
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To run this application you need Docker Engine >= 1.10.0. Docker Compose is recommended with a version 1.6.0 or later.
The recommended way to get the Bitnami Etcd Docker Image is to pull the prebuilt image from the Docker Hub Registry.
$ docker pull bitnami/etcd:latestTo use a specific version, you can pull a versioned tag. You can view the list of available versions in the Docker Hub Registry.
$ docker pull bitnami/etcd:[TAG]If you wish, you can also build the image yourself.
$ docker build -t bitnami/etcd:latest 'https://github.com/bitnami/bitnami-docker-etcd.git#master:3.5/debian-10'Using Docker container networking, a Etcd server running inside a container can easily be accessed by your application containers using a Etcd client.
Containers attached to the same network can communicate with each other using the container name as the hostname.
In this example, we will create a Etcd client instance that will connect to the server instance that is running on the same docker network as the client.
$ docker network create app-tier --driver bridgeUse the --network app-tier argument to the docker run command to attach the Etcd container to the app-tier network.
$ docker run -d --name Etcd-server \
--network app-tier \
--publish 2379:2379 \
--publish 2380:2380 \
--env ALLOW_NONE_AUTHENTICATION=yes \
--env ETCD_ADVERTISE_CLIENT_URLS=http://etcd-server:2379 \
bitnami/etcd:latestFinally we create a new container instance to launch the Etcd client and connect to the server created in the previous step:
$ docker run -it --rm \
--network app-tier \
--env ALLOW_NONE_AUTHENTICATION=yes \
bitnami/etcd:latest etcdctl --endpoints http://etcd-server:2379 put /message HelloWhen not specified, Docker Compose automatically sets up a new network and attaches all deployed services to that network. However, we will explicitly define a new bridge network named app-tier. In this example we assume that you want to connect to the Etcd server from your own custom application image which is identified in the following snippet by the service name myapp.
version: '2'
networks:
app-tier:
driver: bridge
services:
Etcd:
image: 'bitnami/etcd:latest'
environment:
- ALLOW_NONE_AUTHENTICATION=yes
- ETCD_ADVERTISE_CLIENT_URLS=http://etcd:2379
ports:
- 2379:2379
- 2380:2380
networks:
- app-tier
myapp:
image: 'YOUR_APPLICATION_IMAGE'
networks:
- app-tierIMPORTANT:
- Please update the placeholder
YOUR_APPLICATION_IMAGEin the above snippet with your application image- In your application container, use the hostname
etcdto connect to the Etcd server
Launch the containers using:
$ docker-compose up -dThe configuration can easily be setup by mounting your own configuration file on the directory /opt/bitnami/etcd/conf:
$ docker run --name Etcd -v /path/to/Etcd.conf.yml:/opt/bitnami/Etcd/conf/etcd.conf.yml bitnami/etcd:latestAfter that, your configuration will be taken into account in the server's behaviour.
You can also do this by changing the docker-compose.yml file present in this repository:
Etcd:
...
volumes:
- /path/to/Etcd.conf.yml:/opt/bitnami/etcd/conf/etcd.conf.yml
...You can find a sample configuration file on this link
Apart from providing your custom configuration file, you can also modify the server behavior via configuration flags exposed as environment variables.
For example if you want to modify the flag --my-flag, you will need to set the ETCD_MY_FLAG environment variable.
The previous rule applies to all etcd flags.
Note: by default the environment variable
ETCDCTL_APIis set to3. Modify this environment variable to use a different API version.
- The container now contains the needed logic to deploy the Etcd container on Kubernetes using the Bitnami Etcd Chart.
- Arbitrary user ID(s) are supported again, see etcd-io/etcd#12158 for more information abut the changes in the upstream source code
- Arbitrary user ID(s) when running the container with a non-privileged user are not supported (only
1001UID is allowed).
For further documentation, please check Etcd documentation or its GitHub repository
We'd love for you to contribute to this container. You can request new features by creating an issue, or submit a pull request with your contribution.
If you encountered a problem running this container, you can file an issue. For us to provide better support, be sure to include the following information in your issue:
- Host OS and version
- Docker version (
docker version) - Output of
docker info - Version of this container
- The command you used to run the container, and any relevant output you saw (masking any sensitive information)
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.