Chainguard Container for etcd
etcd Distributed reliable key-value store for the most critical data of a distributed system
Chainguard Containers are regularly-updated, secure-by-default container images.
Download this Container Image
For those with access, this container image is available on cgr.dev:
docker pull cgr.dev/ORGANIZATION/etcd:latest
Be sure to replace the ORGANIZATION placeholder with the name used for your organization's private repository within the Chainguard Registry.
Using etcd
The default listening ports in etcd are 2379 and 2380.
To run a container listening on these ports, try:
docker run -p 2379:2379 -p 2380:2380 --rm cgr.dev/chainguard/etcd
{"level":"info","ts":"2022-12-27T15:56:52.651Z","caller":"etcdmain/etcd.go:73","msg":"Running: ","args":["etcd"]}
{"level":"warn","ts":"2022-12-27T15:56:52.651Z","caller":"etcdmain/etcd.go:105","msg":"'data-dir' was empty; using default","data-dir":"default.etcd"}
{"level":"info","ts":"2022-12-27T15:56:52.651Z","caller":"embed/etcd.go:124","msg":"configuring peer listeners","listen-peer-urls":["http://localhost:2380"]}
{"level":"info","ts":"2022-12-27T15:56:52.652Z","caller":"embed/etcd.go:132","msg":"configuring client listeners","listen-client-urls":["http://localhost:2379"]}
{"level":"info","ts":"2022-12-27T15:56:52.652Z","caller":"embed/etcd.go:306","msg":"starting an etcd server","etcd-version":"3.5.6","git-sha":"0a7cb3c","go-version":"go1.19.4","go-os":"linux","go-arch":"arm64","max-cpu-set":8,"max-cpu-available":8,"member-initialized":false,"name":"default","data-dir":"default.etcd","wal-dir":"","wal-dir-dedicated":"","member-dir":"default.etcd/member","force-new-cluster":false,"heartbeat-interval":"100ms","election-timeout":"1s","initial-election-tick-advance":true,"snapshot-count":100000,"max-wals":5,"max-snapshots":5,"snapshot-catchup-entries":5000,"initial-advertise-peer-urls":["http://localhost:2380"],"listen-peer-urls":["http://localhost:2380"],"advertise-client-urls":["http://localhost:2379"],"listen-client-urls":["http://localhost:2379"],"listen-metrics-urls":[],"cors":["*"],"host-whitelist":["*"],"initial-cluster":"default=http://localhost:2380","initial-cluster-state":"new","initial-cluster-token":"etcd-cluster","quota-backend-bytes":2147483648,"max-request-bytes":1572864,"max-concurrent-streams":4294967295,"pre-vote":true,"initial-corrupt-check":false,"corrupt-check-time-interval":"0s","compact-check-time-enabled":false,"compact-check-time-interval":"1m0s","auto-compaction-mode":"periodic","auto-compaction-retention":"0s","auto-compaction-interval":"0s","discovery-url":"","discovery-proxy":"","downgrade-check-interval":"5s"}
{"level":"info","ts":"2022-12-27T15:56:52.657Z","caller":"etcdserver/backend.go:81","msg":"opened backend db","path":"default.etcd/member/snap/db","took":"4.238167ms"}
{"level":"info","ts":"2022-12-27T15:56:52.664Z","caller":"etcdserver/raft.go:494","msg":"starting local member","local-member-id":"8e9e05c52164694d","cluster-id":"cdf818194e3a8c32"}
{"level":"info","ts":"2022-12-27T15:56:52.664Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"8e9e05c52164694d switched to configuration voters=()"}
{"level":"info","ts":"2022-12-27T15:56:52.664Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"8e9e05c52164694d became follower at term 0"}
{"level":"info","ts":"2022-12-27T15:56:52.664Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"newRaft 8e9e05c52164694d [peers: [], term: 0, commit: 0, applied: 0, lastindex: 0, lastterm: 0]"}
{"level":"info","ts":"2022-12-27T15:56:52.664Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"8e9e05c52164694d became follower at term 1"}
{"level":"info","ts":"2022-12-27T15:56:52.665Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"8e9e05c52164694d switched to configuration voters=(10276657743932975437)"}
{"level":"warn","ts":"2022-12-27T15:56:52.674Z","caller":"auth/store.go:1234","msg":"simple token is not cryptographically signed"}
{"level":"info","ts":"2022-12-27T15:56:52.680Z","caller":"mvcc/kvstore.go:393","msg":"kvstore restored","current-rev":1}
{"level":"info","ts":"2022-12-27T15:56:52.681Z","caller":"etcdserver/quota.go:94","msg":"enabled backend quota with default value","quota-name":"v3-applier","quota-size-bytes":2147483648,"quota-size":"2.1 GB"}
{"level":"info","ts":"2022-12-27T15:56:52.686Z","caller":"etcdserver/server.go:854","msg":"starting etcd server","local-member-id":"8e9e05c52164694d","local-server-version":"3.5.6","cluster-version":"to_be_decided"}
{"level":"info","ts":"2022-12-27T15:56:52.688Z","caller":"etcdserver/server.go:738","msg":"started as single-node; fast-forwarding election ticks","local-member-id":"8e9e05c52164694d","forward-ticks":9,"forward-duration":"900ms","election-ticks":10,"election-timeout":"1s"}
{"level":"info","ts":"2022-12-27T15:56:52.688Z","caller":"fileutil/purge.go:44","msg":"started to purge file","dir":"default.etcd/member/snap","suffix":"snap.db","max":5,"interval":"30s"}
{"level":"info","ts":"2022-12-27T15:56:52.688Z","caller":"fileutil/purge.go:44","msg":"started to purge file","dir":"default.etcd/member/snap","suffix":"snap","max":5,"interval":"30s"}
{"level":"info","ts":"2022-12-27T15:56:52.688Z","caller":"fileutil/purge.go:44","msg":"started to purge file","dir":"default.etcd/member/wal","suffix":"wal","max":5,"interval":"30s"}
{"level":"info","ts":"2022-12-27T15:56:52.694Z","caller":"embed/etcd.go:275","msg":"now serving peer/client/metrics","local-member-id":"8e9e05c52164694d","initial-advertise-peer-urls":["http://localhost:2380"],"listen-peer-urls":["http://localhost:2380"],"advertise-client-urls":["http://localhost:2379"],"listen-client-urls":["http://localhost:2379"],"listen-metrics-urls":[]}
{"level":"info","ts":"2022-12-27T15:56:52.694Z","caller":"embed/etcd.go:586","msg":"serving peer traffic","address":"127.0.0.1:2380"}
{"level":"info","ts":"2022-12-27T15:56:52.696Z","caller":"embed/etcd.go:558","msg":"cmux::serve","address":"127.0.0.1:2380"}
Users and Directories
By default this image runs as a non-root user named etcd with a uid of 65532.
The default data directory for this image is /var/lib/etcd, and that directory is write-able by the etcd user.
If you change the user, UID, or data directory, you'll need to ensure the user running the etcd process has permissions to that
directory.
What are Chainguard Containers?
Chainguard Containers are minimal container images that are secure by default.
In many cases, the Chainguard Containers tagged as :latest contain only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager. Chainguard Containers are built with Wolfi, our Linux undistro designed to produce container images that meet the requirements of a more secure software supply chain.
The main features of Chainguard Containers include:
For cases where you need container images with shells and package managers to build or debug, most Chainguard Containers come paired with a -dev variant.
Although the -dev container image variants have similar security features as their more minimal versions, they feature additional software that is typically not necessary in production environments. We recommend using multi-stage builds to leverage the -dev variants, copying application artifacts into a final minimal container that offers a reduced attack surface that won’t allow package installations or logins.
Learn More
To better understand how to work with Chainguard Containers, please visit Chainguard Academy and Chainguard Courses.
In addition to Containers, Chainguard offers VMs and Libraries. Contact Chainguard to access additional products.
Trademarks
This software listing is packaged by Chainguard. The trademarks set forth in this offering are owned by their respective companies, and use of them does not imply any affiliation, sponsorship, or endorsement by such companies.
