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+(ns jepsen.garage.daemon
+ (:require [clojure.tools.logging :refer :all]
+ [jepsen [control :as c]
+ [core :as jepsen]
+ [db :as db]]
+ [jepsen.control.util :as cu]))
+
+; CONSTANTS -- HOW GARAGE IS SET UP
+
+(def base-dir "/opt/garage")
+(def data-dir (str base-dir "/data"))
+(def meta-dir (str base-dir "/meta"))
+(def binary (str base-dir "/garage"))
+(def logfile (str base-dir "/garage.log"))
+(def pidfile (str base-dir "/garage.pid"))
+
+(def admin-token "icanhazadmin")
+(def access-key-id "GK8bfb6a51286071c6c9cd8bc3")
+(def secret-access-key "b0be95f71c1c6f16858a9edf395078b75c12ecb6b1c03385c4ae92076e4994a3")
+(def bucket-name "jepsen")
+
+; THE GARAGE DB
+
+(defn install!
+ "Download and install Garage"
+ [node version]
+ (c/su
+ (c/trace
+ (info node "installing garage" version)
+ (c/exec :mkdir :-p base-dir)
+ (let [url (str "https://garagehq.deuxfleurs.fr/_releases/" version "/x86_64-unknown-linux-musl/garage")
+ cache (cu/cached-wget! url)]
+ (c/exec :cp cache binary))
+ (c/exec :chmod :+x binary))))
+
+(defn configure!
+ "Configure Garage"
+ [node]
+ (c/su
+ (c/trace
+ (cu/write-file!
+ (str "rpc_secret = \"0fffabe52542c2b89a56b2efb7dfd477e9dafb285c9025cbdf1de7ca21a6b372\"\n"
+ "rpc_bind_addr = \"0.0.0.0:3901\"\n"
+ "rpc_public_addr = \"" node ":3901\"\n"
+ "db_engine = \"lmdb\"\n"
+ "replication_mode = \"2\"\n"
+ "data_dir = \"" data-dir "\"\n"
+ "metadata_dir = \"" meta-dir "\"\n"
+ "[s3_api]\n"
+ "s3_region = \"us-east-1\"\n"
+ "api_bind_addr = \"0.0.0.0:3900\"\n"
+ "[k2v_api]\n"
+ "api_bind_addr = \"0.0.0.0:3902\"\n"
+ "[admin]\n"
+ "api_bind_addr = \"0.0.0.0:3903\"\n"
+ "admin_token = \"" admin-token "\"\n"
+ "trace_sink = \"http://192.168.56.1:4317\"\n")
+ "/etc/garage.toml"))))
+
+(defn connect-node!
+ "Connect a Garage node to the rest of the cluster"
+ [test node]
+ (c/trace
+ (let [node-id (c/exec binary :node :id :-q)]
+ (info node "node id:" node-id)
+ (c/on-many (:nodes test)
+ (c/exec binary :node :connect node-id)))))
+
+(defn configure-node!
+ "Configure a Garage node to be part of a cluster layout"
+ [test node]
+ (c/trace
+ (let [node-id (c/exec binary :node :id :-q)]
+ (c/on (jepsen/primary test)
+ (c/exec binary :layout :assign (subs node-id 0 16) :-c :1G :-z :dc1 :-t node)))))
+
+(defn finalize-config!
+ "Apply the layout and create a key/bucket pair in the cluster"
+ [node]
+ (c/trace
+ (c/exec binary :layout :apply :--version 1)
+ (info node "garage status:" (c/exec binary :status))
+ (c/exec binary :key :import access-key-id secret-access-key :--yes)
+ (c/exec binary :bucket :create bucket-name)
+ (c/exec binary :bucket :allow :--read :--write bucket-name :--key access-key-id)
+ (info node "key info: " (c/exec binary :key :info access-key-id))))
+
+(defn db
+ "Garage DB for a particular version"
+ [version]
+ (reify db/DB
+ (setup! [_ test node]
+ (install! node version)
+ (configure! node)
+ (cu/start-daemon!
+ {:logfile logfile
+ :pidfile pidfile
+ :chdir base-dir
+ :env {:RUST_LOG "garage=debug,garage_api=trace"}}
+ binary
+ :server)
+ (c/exec :sleep 3)
+
+ (jepsen/synchronize test)
+ (connect-node! test node)
+
+ (jepsen/synchronize test)
+ (configure-node! test node)
+
+ (jepsen/synchronize test)
+ (when (= node (jepsen/primary test))
+ (finalize-config! node)))
+
+ (teardown! [_ test node]
+ (info node "tearing down garage" version)
+ (c/su
+ (cu/stop-daemon! binary pidfile)
+ (c/exec :rm :-rf logfile)
+ (c/exec :rm :-rf data-dir)
+ (c/exec :rm :-rf meta-dir)))
+
+ db/Pause
+ (pause! [_ test node]
+ (cu/grepkill! :stop binary))
+ (resume! [_ test node]
+ (cu/grepkill! :cont binary))
+
+ db/Kill
+ (kill! [_ test node]
+ (cu/stop-daemon! binary pidfile))
+ (start! [_ test node]
+ (cu/start-daemon!
+ {:logfile logfile
+ :pidfile pidfile
+ :chdir base-dir
+ :env {:RUST_LOG "garage=debug,garage_api=trace"}}
+ binary
+ :server))
+
+ db/LogFiles
+ (log-files [_ test node]
+ [logfile])))
+
+(defn creds
+ "Obtain Garage credentials for node"
+ [node]
+ {:access-key access-key-id
+ :secret-key secret-access-key
+ :endpoint (str "http://" node ":3900")
+ :bucket bucket-name
+ :client-config {:path-style-access-enabled true}})
+