Chainguard Image for solr

solr Solr is the popular, blazing fast open source search platform for all your enterprise, e-commerce, and analytics needs, built on Apache Lucene.

Chainguard Images are regularly-updated, minimal container images with low-to-zero CVEs.

Download this Image

This image is available on cgr.dev:

docker pull cgr.dev/ORGANIZATION/solr:latest

Be sure to replace the ORGANIZATION placeholder with the name used for your organization's private repository within the Chainguard registry.

Using Solr

This image should be a drop-in replacement for the slim variant of the upstream image. Documentation is available there: https://hub.docker.com/_/solr

You can run it locally with:

$ docker run -p 8983:8983 cgr.dev/chainguard/solr
Starting Solr
Java 17 detected. Enabled workaround for SOLR-16463
[0.002s][warning][pagesize] UseLargePages disabled, no large pages configured and available on the system.
CompileCommand: exclude com/github/benmanes/caffeine/cache/BoundedLocalCache.put bool exclude = true
WARNING: A command line option has enabled the Security Manager
WARNING: The Security Manager is deprecated and will be removed in a future release
2023-11-23 17:22:03.082 INFO  (main) [] o.e.j.s.Server jetty-10.0.17; built: 2023-10-09T18:22:21.150Z; git: af15f12297adf5c5083e1f2f8f4c5974438bca25; jvm 17.0.10+1-wolfi-r0
2023-11-23 17:22:03.346 WARN  (main) [] o.e.j.u.DeprecationWarning Using @Deprecated Class org.eclipse.jetty.servlet.listener.ELContextCleaner
2023-11-23 17:22:03.362 INFO  (main) [] o.a.s.s.CoreContainerProvider Using logger factory org.apache.logging.slf4j.Log4jLoggerFactory
2023-11-23 17:22:03.366 INFO  (main) [] o.a.s.s.CoreContainerProvider  ___      _       Welcome to Apache Solr? version 9.4.0-SNAPSHOT 71e101bb37497f730078d9afe1991b60d10bfe96 [snapshot build, details omitted]
2023-11-23 17:22:03.367 INFO  (main) [] o.a.s.s.CoreContainerProvider / __| ___| |_ _   Starting in standalone mode on port 8983
2023-11-23 17:22:03.367 INFO  (main) [] o.a.s.s.CoreContainerProvider \__ \/ _ \ | '_|  Install dir: /usr/share/java/solr
2023-11-23 17:22:03.367 INFO  (main) [] o.a.s.s.CoreContainerProvider |___/\___/_|_|    Start time: 2023-11-23T17:22:03.367155177Z
2023-11-23 17:22:03.368 INFO  (main) [] o.a.s.s.CoreContainerProvider Solr started with "-XX:+CrashOnOutOfMemoryError" that will crash on any OutOfMemoryError exception. The cause of the OOME will be logged in the crash file at the following path: /var/solr/logs/jvm_crash_12.log
2023-11-23 17:22:03.386 INFO  (main) [] o.a.s.s.CoreContainerProvider Solr Home: /var/solr/data (source: system property: solr.solr.home)
2023-11-23 17:22:03.399 INFO  (main) [] o.a.s.c.SolrXmlConfig solr.xml not found in SOLR_HOME, using built-in default
2023-11-23 17:22:03.399 INFO  (main) [] o.a.s.c.SolrXmlConfig Loading solr.xml from /usr/share/java/solr/server/solr/solr.xml
2023-11-23 17:22:03.451 INFO  (main) [] o.a.s.c.SolrResourceLoader Added 1 libs to classloader, from paths: [/usr/share/java/solr/lib]
2023-11-23 17:22:04.035 INFO  (main) [] o.a.s.u.t.SimplePropagator Always-on trace id generation enabled.
2023-11-23 17:22:04.268 WARN  (main) [] o.a.s.u.StartupLoggingUtils Jetty request logging enabled. Will retain logs for last 3 days. See chapter "Configuring Logging" in reference guide for how to configure.
2023-11-23 17:22:04.270 WARN  (main) [] o.a.s.c.CoreContainer Not all security plugins configured!  authentication=disabled authorization=disabled.  Solr is only as secure as you make it. Consider configuring authentication/authorization before exposing Solr to users internal or external.  See https://s.apache.org/solrsecurity for more info
2023-11-23 17:22:04.458 INFO  (main) [] o.a.s.c.CorePropertiesLocator Found 0 core definitions underneath /var/solr/data
2023-11-23 17:22:04.582 WARN  (main) [] o.g.j.m.i.MessagingBinders A class javax.activation.DataSource for a default provider MessageBodyWriter<javax.activation.DataSource> was not found. The provider is not available.
2023-11-23 17:22:04.803 INFO  (main) [] o.a.s.j.SolrRequestAuthorizer Creating a new SolrRequestAuthorizer
2023-11-23 17:22:04.903 INFO  (main) [] o.e.j.s.h.ContextHandler Started o.e.j.w.WebAppContext@3aee3976{solr-jetty-context.xml,/solr,file:///usr/share/java/solr/server/solr-webapp/webapp/,AVAILABLE}{/usr/share/java/solr/server/solr-webapp/webapp}
2023-11-23 17:22:04.921 INFO  (main) [] o.e.j.s.RequestLogWriter Opened /var/solr/logs/2023_11_23.request.log
2023-11-23 17:22:04.931 INFO  (main) [] o.e.j.s.AbstractConnector Started ServerConnector@556d0826{HTTP/1.1, (http/1.1, h2c)}{0.0.0.0:8983}
2023-11-23 17:22:04.932 INFO  (main) [] o.e.j.s.Server Started Server@2b491fee{STARTING}[10.0.17,sto=0] @3216ms

The admin console should then be available in your browser at http://localhost:8983.

Contact Support

If you have a Zendesk account (typically set up for you by your Customer Success Manager) you can reach out to Chainguard's Customer Success team through our Zendesk portal.

What are Chainguard Images?

Chainguard Images are a collection of container images designed for security and minimalism.

Many Chainguard Images are distroless; they contain only an open-source application and its runtime dependencies. These images do not even contain a shell or package manager. Chainguard Images are built with Wolfi, our Linux undistro designed to produce container images that meet the requirements of a secure software supply chain.

The main features of Chainguard Images include:

• Minimal design, with no unnecessary software bloat
• Automated nightly builds to ensure Images are completely up-to-date and contain all available security patches
• High quality build-time SBOMs (software bills of materials) attesting the provenance of all artifacts within the Image
• Verifiable signatures provided by Sigstore
• Reproducible builds with Cosign and apko (read more about reproducibility)

-dev Variants

As mentioned previously, Chainguard’s distroless Images have no shell or package manager by default. This is great for security, but sometimes you need these things, especially in builder images. For those cases, most (but not all) Chainguard Images come paired with a -dev variant which does include a shell and package manager.

Although the -dev image variants have similar security features as their distroless versions, such as complete SBOMs and signatures, they feature additional software that is typically not necessary in production environments. The general recommendation is to use the -dev variants only to build the application and then copy all application artifacts into a distroless image, which will result in a final container image that has a minimal attack surface and won’t allow package installations or logins.

That being said, it’s worth noting that -dev variants of Chainguard Images are completely fine to run in production environments. After all, the -dev variants are still more secure than many popular container images based on fully-featured operating systems such as Debian and Ubuntu since they carry less software, follow a more frequent patch cadence, and offer attestations for what they include.

Learn More

To better understand how to work with Chainguard Images, we encourage you to visit Chainguard Academy, our documentation and education platform.