Documentation Index
Fetch the complete documentation index at: https://docs.root.io/llms.txt
Use this file to discover all available pages before exploring further.
Root Image Catalog provides patched versions of 500+ Docker Hub images. Every image is available at cr.root.io and kept in sync with upstream releases.
Language Runtimes
Python
| Tag Pattern | Example | Base OS |
|---|
python:{version} | cr.root.io/python:3.12 | Debian bookworm |
python:{version}-slim | cr.root.io/python:3.12-slim | Debian bookworm slim |
python:{version}-alpine | cr.root.io/python:3.12-alpine | Alpine |
python:{version}-bookworm | cr.root.io/python:3.12-bookworm | Debian bookworm |
python:{version}-bullseye | cr.root.io/python:3.12-bullseye | Debian bullseye |
Supported versions: 3.9, 3.10, 3.11, 3.12, 3.13
Node.js
| Tag Pattern | Example | Base OS |
|---|
node:{version} | cr.root.io/node:20 | Debian bookworm |
node:{version}-slim | cr.root.io/node:20-slim | Debian bookworm slim |
node:{version}-alpine | cr.root.io/node:20-alpine | Alpine |
node:lts | cr.root.io/node:lts | Current LTS (Debian) |
node:current | cr.root.io/node:current | Current release (Debian) |
Supported versions: 18 (LTS), 20 (LTS), 22 (Current)
| Tag Pattern | Example | Base OS |
|---|
golang:{version} | cr.root.io/golang:1.22 | Debian bookworm |
golang:{version}-alpine | cr.root.io/golang:1.22-alpine | Alpine |
golang:{version}-bookworm | cr.root.io/golang:1.22-bookworm | Debian bookworm |
Supported versions: 1.21, 1.22, 1.23, 1.24
Ruby
| Tag Pattern | Example | Base OS |
|---|
ruby:{version} | cr.root.io/ruby:3.3 | Debian bookworm |
ruby:{version}-slim | cr.root.io/ruby:3.3-slim | Debian bookworm slim |
ruby:{version}-alpine | cr.root.io/ruby:3.3-alpine | Alpine |
PHP
| Tag Pattern | Example | Base OS |
|---|
php:{version}-fpm | cr.root.io/php:8.3-fpm | Debian bookworm |
php:{version}-fpm-alpine | cr.root.io/php:8.3-fpm-alpine | Alpine |
php:{version}-cli | cr.root.io/php:8.3-cli | Debian bookworm |
Rust
cr.root.io/rust:{version} - Debian bookworm
cr.root.io/rust:{version}-alpine - Alpine
Other Runtimes
Root Image Catalog also supports: elixir, erlang, haskell, clojure, scala, groovy, dart, swift, julia, perl, r-base, gcc, clang
Java / JVM
| Image | Example | Notes |
|---|
eclipse-temurin | cr.root.io/eclipse-temurin:21-jre | Eclipse Adoptium (recommended) |
amazoncorretto | cr.root.io/amazoncorretto:21 | Amazon Corretto |
ibmjava | cr.root.io/ibmjava:8 | IBM Semeru |
Eclipse Temurin variants: -jdk, -jre, -alpine, -jammy, -focal
Web Servers & Proxies
| Image | Example | Notes |
|---|
nginx | cr.root.io/nginx:1.25 | Full and alpine variants |
httpd | cr.root.io/httpd:2.4 | Apache HTTP Server |
caddy | cr.root.io/caddy:2 | Caddy server |
haproxy | cr.root.io/haproxy:2.8 | HAProxy |
traefik | cr.root.io/traefik:v3 | Traefik proxy |
Databases
| Image | Example |
|---|
postgres | cr.root.io/postgres:16 |
mysql | cr.root.io/mysql:8.0 |
mariadb | cr.root.io/mariadb:11 |
mongo | cr.root.io/mongo:7 |
redis | cr.root.io/redis:7-alpine |
elasticsearch | cr.root.io/elasticsearch:8.12 |
cassandra | cr.root.io/cassandra:5 |
couchdb | cr.root.io/couchdb:3 |
neo4j | cr.root.io/neo4j:5 |
influxdb | cr.root.io/influxdb:2 |
clickhouse | cr.root.io/clickhouse:24 |
arangodb | cr.root.io/arangodb:3 |
couchbase | cr.root.io/couchbase:7 |
memcached | cr.root.io/memcached:1 |
Message Brokers & Streaming
| Image | Example |
|---|
rabbitmq | cr.root.io/rabbitmq:3-management |
kafka | cr.root.io/kafka:3.7 |
zookeeper | cr.root.io/zookeeper:3.9 |
nats | cr.root.io/nats:2 |
emqx | cr.root.io/emqx:5 |
Observability & Monitoring
| Image | Example |
|---|
grafana | cr.root.io/grafana:10 |
prometheus | cr.root.io/prometheus:v2 |
logstash | cr.root.io/logstash:8 |
kibana | cr.root.io/kibana:8 |
fluentd | cr.root.io/fluentd:v1 |
influxdb | cr.root.io/influxdb:2 |
chronograf | cr.root.io/chronograf:1 |
kapacitor | cr.root.io/kapacitor:1 |
Base OS Images
| Image | Example | Notes |
|---|
debian | cr.root.io/debian:bookworm-slim | Bookworm and bullseye |
ubuntu | cr.root.io/ubuntu:24.04 | 24.04 LTS, 22.04 LTS |
alpine | cr.root.io/alpine:3.20 | 3.18, 3.19, 3.20 |
amazonlinux | cr.root.io/amazonlinux:2023 | AL2, AL2023 |
almalinux | cr.root.io/almalinux:9 | AlmaLinux 8, 9 |
fedora | cr.root.io/fedora:40 | Latest stable |
busybox | cr.root.io/busybox:1 | Minimal base |
gradle, maven, composer (PHP), buildpack-deps
Request an Image
If your workload uses an image not listed here, contact Root to request it. Provide the Docker Hub image name and the tags you use.
Root adds new image families regularly. Enterprise customers can request priority onboarding for specific images.