+h3. Create config file
+
+By default, keepstore will look for its configuration file at @/etc/arvados/keepstore/keepstore.yml@
+
+You can override the configuration file location using the @-config@ command line option to keepstore.
+
+The following is a sample configuration file:
+
+<pre>
+# Duration for which new permission signatures (returned in PUT
+# responses) will be valid. This should be equal to the API
+# server's blob_signature_ttl configuration entry.
+BlobSignatureTTL: 336h0m0s
+
+# Local file containing the secret blob signing key (used to generate
+# and verify blob signatures). The contents of the key file must be
+# identical to the API server's blob_signing_key configuration entry.
+BlobSigningKeyFile: ""
+
+# Print extra debug logging
+Debug: false
+
+# Maximum number of concurrent block deletion operations (per
+# volume) when emptying trash. Default is 1.
+EmptyTrashWorkers: 1
+
+# Enable trash and delete features. If false, trash lists will be
+# accepted but blocks will not be trashed or deleted.
+# Keepstore does not delete data on its own. The keep-balance
+# service determines which blocks are candidates for deletion
+# and instructs the keepstore to move those blocks to the trash.
+EnableDelete: true
+
+# Local port to listen on. Can be 'address:port' or ':port', where
+# 'address' is a host IP address or name and 'port' is a port number
+# or name.
+Listen: :25107
+
+# Format of request/response and error logs: "json" or "text".
+LogFormat: json
+ManagementToken: ""
+
+# Maximum RAM to use for data buffers, given in multiples of block
+# size (64 MiB). When this limit is reached, HTTP requests requiring
+# buffers (like GET and PUT) will wait for buffer space to be
+# released.
+#
+# It should be set such that MaxBuffers * 64MiB + 10% fits
+# comfortably in memory. On a host dedicated to running keepstore,
+# divide total memory by 88MiB to suggest a suitable value. For example,
+# if grep MemTotal /proc/meminfo reports MemTotal: 7125440 kB,
+# compute 7125440 / (88 * 1024)=79 and configure MaxBuffers: 79
+MaxBuffers: 128
+
+# Maximum concurrent requests. When this limit is reached, new
+# requests will receive 503 responses. Note: this limit does not
+# include idle connections from clients using HTTP keepalive, so it
+# does not strictly limit the number of concurrent connections. If
+# omitted or zero, the default is 2 * MaxBuffers.
+MaxRequests: 0
+
+# Path to write PID file during startup. This file is kept open and
+# locked with LOCK_EX until keepstore exits, so "fuser -k pidfile" is
+# one way to shut down. Exit immediately if there is an error
+# opening, locking, or writing the PID file.
+PIDFile: ""
+
+# Maximum number of concurrent pull operations. Default is 1, i.e.,
+# pull lists are processed serially.
+PullWorkers: 0
+
+# Honor read requests only if a valid signature is provided. This
+# should be true, except for development use and when migrating from
+# a very old version.
+RequireSignatures: true
+
+# Local file containing the Arvados API token used by keep-balance
+# or data manager. Delete, trash, and index requests are honored
+# only for this token.
+SystemAuthTokenFile: ""
+
+# Path to server certificate file in X509 format. Enables TLS mode.
+#
+# Example: /var/lib/acme/live/keep0.example.com/fullchain
+TLSCertificateFile: ""
+
+# Path to server key file in X509 format. Enables TLS mode.
+#
+# The key pair is read from disk during startup, and whenever SIGHUP
+# is received.
+#
+# Example: /var/lib/acme/live/keep0.example.com/privkey
+TLSKeyFile: ""
+
+# How often to check for (and delete) trashed blocks whose
+# TrashLifetime has expired.
+TrashCheckInterval: 24h0m0s
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