Merge ~ubuntu-docker-images/ubuntu-docker-images/+git/templates:redis into ~ubuntu-docker-images/ubuntu-docker-images/+git/templates:master

[Sergio Durigan Junior]

Redis data (needed to generate the README file) and the corresponding redis.md (generated from the data).

[Valentin Viennot (valentinviennot)]

review: Approve

diff --git a/data/redis.yaml b/data/redis.yaml
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+++ b/data/redis.yaml
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+application: Redis
+repo: redis
+description: >
+  Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. 
+  It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams. 
+  Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability via Redis Sentinel and automatic partitioning with Redis Cluster. 
+  Read more on the [Redis website](https://redis.io/topics/introduction).
+version: 5.0.7
+base: Ubuntu 20.04 LTS
+architectures:
+  - amd64
+  - arm64
+  - ppc64el
+  - s390x
+docker:
+  parameters:
+    - -p 30073:6379
+    - -e REDIS_PASSWORD=mypassword
+  access: Access your Redis server at `localhost:30073`.
+parameters:
+  - type: -e
+    value: TZ=UTC
+    description: Timezone.
+  - type: -e
+    value: ALLOW_EMPTY_PASSWORD
+    description: Set to `yes` to allow connections to `redis-server` without a password.  **This setting is not recommended in production environments**.
+  - type: -e
+    value: REDIS_PASSWORD
+    description: Set the desired password to be used.
+  - type: -e
+    value: REDIS_RANDOM_PASSWORD
+    description: Set this variable to `1` if you would like the entrypoint script to generate a random password for you.  You will be able to see the generated password in the logs (`docker logs`).
+  - type: -e
+    value: REDIS_ALLOW_REMOTE_CONNECTIONS=yes
+    description: Set to `no` to disallow remote connections to `redis-server` (i.e., make `redis-server` listen to `127.0.0.1` only).
+  - type: -e
+    value: REDIS_EXTRA_FLAGS
+    description: Specify extra flags to be passed to `redis-server` when initializing it.
+  - type: -p
+    value: 30073:6379
+    description: Expose redis on `localhost:30073`.
+  - type: -v
+    value: /path/to/redis.conf:/etc/redis/redis.conf
+    description: Local [configuration file](https://redis.io/topics/config) `redis.conf` (try [this example](https://git.launchpad.net/~canonical-server/ubuntu-docker-images/+git/redis/plain/examples/config/redis.conf)).
+debug:
+  network:
+    client: redis-cli
+    args: -h redis-container
+    followup: |
+      ```
+      ```
+      redis:6379> AUTH mypassword
+      OK
+      redis:6379> PING
+      PONG
+      redis:6379>
+microk8s:
+  configmap:
+    name: redis-config
+    files:
+      - key: redis
+        name: redis.conf
+        link: https://git.launchpad.net/~canonical-server/ubuntu-docker-images/+git/redis/plain/examples/config/redis.conf
+  deploy:
+    name: redis-deployment.yml
+    link: https://git.launchpad.net/~canonical-server/ubuntu-docker-images/+git/redis/plain/examples/redis-deployment.yml
+    access: You will now be able to connect to the Redis server on `localhost:30073`.
diff --git a/out/redis.md b/out/redis.md
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+# Redis | Ubuntu
+
+
+## About Redis
+
+Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker.  It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams.  Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability via Redis Sentinel and automatic partitioning with Redis Cluster.  Read more on the [Redis website](https://redis.io/topics/introduction).
+
+
+## Tags and Architectures
+
+
+| Tag | Currently | Architectures |
+|---|---|---|
+| `5.x`    ![BETA](https://assets.ubuntu.com/v1/e8ac33d1-header-beta-flag.svg) | Redis 5.0.7 on Ubuntu 20.04 LTS | `amd64`, `arm64`, `ppc64el`, `s390x` |
+
+## Usage
+
+Launch this image locally:
+
+```sh
+docker run -d --name redis-container -e TZ=UTC -p 30073:6379 -e REDIS_PASSWORD=mypassword ubuntu/redis:5.x
+```
+
+Access your Redis server at `localhost:30073`.
+
+#### Parameters
+
+| Parameter | Description |
+|---|---|
+| `-e TZ=UTC` | Timezone. |
+| `-e ALLOW_EMPTY_PASSWORD` | Set to `yes` to allow connections to `redis-server` without a password.  **This setting is not recommended in production environments**. |
+| `-e REDIS_PASSWORD` | Set the desired password to be used. |
+| `-e REDIS_RANDOM_PASSWORD` | Set this variable to `1` if you would like the entrypoint script to generate a random password for you.  You will be able to see the generated password in the logs (`docker logs`). |
+| `-e REDIS_ALLOW_REMOTE_CONNECTIONS=yes` | Set to `no` to disallow remote connections to `redis-server` (i.e., make `redis-server` listen to `127.0.0.1` only). |
+| `-e REDIS_EXTRA_FLAGS` | Specify extra flags to be passed to `redis-server` when initializing it. |
+| `-p 30073:6379` | Expose redis on `localhost:30073`. |
+| `-v /path/to/redis.conf:/etc/redis/redis.conf` | Local [configuration file](https://redis.io/topics/config) `redis.conf` (try [this example](https://git.launchpad.net/~canonical-server/ubuntu-docker-images/+git/redis/plain/examples/config/redis.conf)). |
+
+
+#### Testing/Debugging
+
+To debug the container:
+
+```sh
+$ docker logs -f redis-container
+```
+
+To get an interactive shell:
+
+```sh
+$ docker exec -it redis-container /bin/bash
+```
+
+This image also includes the `redis-cli` client for interactive container use:
+
+```sh
+$ docker network create redis-network
+$ docker network connect redis-network redis-container
+$ docker run -it --rm --network redis-network ubuntu/redis:5.x redis-cli -h redis-container
+```
+```
+redis:6379> AUTH mypassword
+OK
+redis:6379> PING
+PONG
+redis:6379>
+
+```
+
+
+## Deploy with Kubernetes
+
+
+
+Works with any Kubernetes; if you don't have one, we recommend you [install MicroK8s](https://microk8s.io/) and `microk8s enable dns storage` then alias `kubectl` to `microk8s.kubectl`.
+
+Download
+[redis.conf](https://git.launchpad.net/~canonical-server/ubuntu-docker-images/+git/redis/plain/examples/config/redis.conf), and
+[redis-deployment.yml](https://git.launchpad.net/~canonical-server/ubuntu-docker-images/+git/redis/plain/examples/redis-deployment.yml). Then:
+
+```sh
+$ kubectl create configmap redis-config --from-file=redis=redis.conf
+$ kubectl apply -f redis-deployment.yml
+```
+
+You will now be able to connect to the redis server on `localhost:30073`.
+
+## Bugs and feature requests
+
+If you find a bug in our image or want to request a specific feature, please file a bug here:
+
+[https://bugs.launchpad.net/ubuntu-docker-images/+filebug](https://bugs.launchpad.net/ubuntu-docker-images/+filebug)
+
+Please title the bug "`redis: <reason>`".
+
+Make sure to include the digest of the image you are using, from:
+```sh
+$ docker images --no-trunc --quiet ubuntu/redis:<tag>
+```
+