1.0.0 Release IaaS

docs/archives/2025-12/03_common/03_05_redis.md

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+Tags: #os, #configuration, #virtualization, #container, #database, #cache
+
+## Redis
+
+Redis is the cache database. It doesn't use SQL, it is just key-value data storage.
+
+### Redis in Pod
+
+Redis is combined with master services in the pod. It allows master services and Redis can communication in localhost. It doesn't need TLS, password, or even ACL itself.
+
+There is the list of services which use Redis in Pod.
+#### Preperation
+
+##### Create directory for container
+
+```bash
+mkdir -p ~/data/containers/app/redis
+setfacl -m d:g::0 ~/data/containers/app/redis
+setfacl -m d:o::0 ~/data/containers/app/redis
+setfacl -m u:
+$UID:rwx ~/data/containers/app/redis
+setfacl -m u:100998:rwx ~/data/containers/app/redis
+setfacl -d -m u:$UID:rwx ~/data/containers/app/redis
+setfacl -d -m u:100998:rwx ~/data/containers/app/redis
+```
+
+>Redis container executes as 999:999(redis:redis) permission in container. It is mapped host's 100998. Therefore, directories have to have ACL via `setfacl`
+
+### Podman Image
+
+```bash
+podman pull redis:8.2.2 # Do not use latest version to management
+```
+
+### Quadlet
+
+- File: 
+	- ~/data/config/containers/app/app.pod
+	- ~/data/config/containers/app/app-redis.container
+	- ~/data/config/containers/app/app.container
+
+```ini
+# ~/data/config/containers/app/app.pod
+[Quadlet]
+DefaultDependencies=false
+
+[Pod]
+PodName=app
+
+# web port
+PublishPort=9080:9000/tcp
+# LDAP port
+#PublishPort=[set_port]:3389
+# Prometheus Port
+#PublishPort=[set_port]:9300
+```
+
+```ini
+# ~/data/config/containers/app/app-redis.container
+
+[Quadlet]
+DefaultDependencies=false
+
+[Unit]
+Description=app - redis
+Before=app.service
+
+[Container]
+Pod=app.pod
+
+Image=redis:8.2.2
+
+ContainerName=app-redis
+
+# Port 6379
+
+Volume=%h/data/containers/app/redis:/data:rw
+
+Environment="TZ=Asia/Seoul"
+
+[Install]
+WantedBy=default.target
+```
+
+```ini
+# ~/data/config/containers/app/app.container
+[Quadlet]
+DefaultDependencies=false
+
+[Unit]
+Description=app
+
+After=app-redis.service
+Requires=app-redis.service
+
+[Container]
+Pod=app.pod
+
+Image=app:version
+
+Volume=%h/data/containers/app/app:/data:rw
+
+Environment="TZ=Asia/Seoul"
+
+[Install]
+WantedBy=default.target
+```