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\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Reposoliver006/redis_exporter
Views\"views\"
Stars\"stars\"
Forks\"forks\"
License\"license\"
UpdatedAt\"last-commit\"
CreatedAt\"create-at\"
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\"\"

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\n

Prometheus Valkey & Redis Metrics Exporter

\n

\"Tests\"
\n\"Coverage \"codecov\" \"docker_pulls\" \"Stand

\n

Prometheus exporter for Valkey metrics (Redis-compatible).
\nSupports Valkey and Redis 2.x, 3.x, 4.x, 5.x, 6.x, and 7.x

\n

Ukraine is still suffering from Russian aggression, please consider supporting Ukraine with a donation.

\n

\"Stand

\n

Building and running the exporter

\n

Build and run locally

\n
git clone https://github.com/oliver006/redis_exporter.git\ncd redis_exporter\ngo build .\n./redis_exporter --version
\n

Pre-build binaries

\n

For pre-built binaries please take a look at the releases.

\n

Basic Prometheus Configuration

\n

Add a block to the scrape_configs of your prometheus.yml config file:

\n
scrape_configs:\n  - job_name: redis_exporter\n    static_configs:\n    - targets: ['<<REDIS-EXPORTER-HOSTNAME>>:9121']
\n

and adjust the host name accordingly.

\n

Kubernetes SD configurations

\n

To have instances in the drop-down as human readable names rather than IPs, it is suggested to use instance relabelling.

\n

For example, if the metrics are being scraped via the pod role, one could add:

\n
          - source_labels: [__meta_kubernetes_pod_name]\n            action: replace\n            target_label: instance\n            regex: (.*redis.*)
\n

as a relabel config to the corresponding scrape config. As per the regex value, only pods with \"redis\" in their name will be relabelled as such.

\n

Similar approaches can be taken with other role types depending on how scrape targets are retrieved.

\n

Prometheus Configuration to Scrape Multiple Redis Hosts

\n

The Prometheus docs have a very informative article on how multi-target exporters are intended to work.

\n

Run the exporter with the command line flag --redis.addr= so it won't try to access the local instance every time the /metrics endpoint is scraped. Using below config instead of the /metric endpoint the /scrape endpoint will be used by prometheus. As an example the first target will be queried with this web request:
\nhttp://exporterhost:9121/scrape?target=first-redis-host:6379

\n
scrape_configs:\n  ## config for the multiple Redis targets that the exporter will scrape\n  - job_name: 'redis_exporter_targets'\n    static_configs:\n      - targets:\n        - redis://first-redis-host:6379\n        - redis://second-redis-host:6379\n        - redis://second-redis-host:6380\n        - redis://second-redis-host:6381\n    metrics_path: /scrape\n    relabel_configs:\n      - source_labels: [__address__]\n        target_label: __param_target\n      - source_labels: [__param_target]\n        target_label: instance\n      - target_label: __address__\n        replacement: <<REDIS-EXPORTER-HOSTNAME>>:9121\n\n  ## config for scraping the exporter itself\n  - job_name: 'redis_exporter'\n    static_configs:\n      - targets:\n        - <<REDIS-EXPORTER-HOSTNAME>>:9121
\n

The Redis instances are listed under targets, the Redis exporter hostname is configured via the last relabel_config rule.
\nIf authentication is needed for the Redis instances then you can set the password via the --redis.password command line option of
\nthe exporter (this means you can currently only use one password across the instances you try to scrape this way. Use several
\nexporters if this is a problem).
\nYou can also use a json file to supply multiple targets by using file_sd_configs like so:

\n
scrape_configs:\n  - job_name: 'redis_exporter_targets'\n    file_sd_configs:\n      - files:\n        - targets-redis-instances.json\n    metrics_path: /scrape\n    relabel_configs:\n      - source_labels: [__address__]\n        target_label: __param_target\n      - source_labels: [__param_target]\n        target_label: instance\n      - target_label: __address__\n        replacement: <<REDIS-EXPORTER-HOSTNAME>>:9121\n\n  ## config for scraping the exporter itself\n  - job_name: 'redis_exporter'\n    static_configs:\n      - targets:\n        - <<REDIS-EXPORTER-HOSTNAME>>:9121
\n

The targets-redis-instances.json should look something like this:

\n
[\n  {\n    \"targets\": [ \"redis://redis-host-01:6379\", \"redis://redis-host-02:6379\"],\n    \"labels\": { }\n  }\n]
\n

Prometheus uses file watches and all changes to the json file are applied immediately.

\n

Prometheus Configuration to Scrape All Nodes in a Redis Cluster

\n

When using a Redis Cluster, the exporter provides a discovery endpoint that can be used to discover all nodes in the cluster.
\nTo use this feature, the exporter must be started with the --is-cluster flag.
\nThe discovery endpoint is available at /discover-cluster-nodes and can be used in the Prometheus configuration like this:

\n
scrape_configs:\n  - job_name: 'redis_exporter_cluster_nodes'\n    http_sd_configs:\n      - url: http://<<REDIS-EXPORTER-HOSTNAME>>:9121/discover-cluster-nodes\n        refresh_interval: 10m\n    metrics_path: /scrape\n    relabel_configs:\n      - source_labels: [__address__]\n        target_label: __param_target\n      - source_labels: [__param_target]\n        target_label: instance\n      - target_label: __address__\n        replacement: <<REDIS-EXPORTER-HOSTNAME>>:9121\n\n  ## config for scraping the exporter itself\n  - job_name: 'redis_exporter'\n    static_configs:\n      - targets:\n        - <<REDIS-EXPORTER-HOSTNAME>>:9121
\n

Command line flags

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
NameEnvironment Variable NameDescription
redis.addrREDIS_ADDRAddress of the Redis instance, defaults to redis://localhost:6379. If TLS is enabled, the address must be like the following rediss://localhost:6379
redis.userREDIS_USERUser name to use for authentication (Redis ACL for Redis 6.0 and newer).
redis.passwordREDIS_PASSWORDPassword of the Redis instance, defaults to \"\" (no password).
redis.password-fileREDIS_PASSWORD_FILEPassword file of the Redis instance to scrape, defaults to \"\" (no password file).
check-keysREDIS_EXPORTER_CHECK_KEYSComma separated list of key patterns to export value and length/size, eg: db3=user_count will export key user_count from db 3. db defaults to 0 if omitted. The key patterns specified with this flag will be found using SCAN. Use this option if you need glob pattern matching; check-single-keys is faster for non-pattern keys. Warning: using --check-keys to match a very large number of keys can slow down the exporter to the point where it doesn't finish scraping the redis instance. --check-keys doesn't work in fluster mode as \"SCAN\" does not work across multiple instances.
check-single-keysREDIS_EXPORTER_CHECK_SINGLE_KEYSComma separated list of keys to export value and length/size, eg: db3=user_count will export key user_count from db 3. db defaults to 0 if omitted. The keys specified with this flag will be looked up directly without any glob pattern matching. Use this option if you don't need glob pattern matching; it is faster than check-keys.
check-streamsREDIS_EXPORTER_CHECK_STREAMSComma separated list of stream-patterns to export info about streams, groups and consumers. Syntax is the same as check-keys.
check-single-streamsREDIS_EXPORTER_CHECK_SINGLE_STREAMSComma separated list of streams to export info about streams, groups and consumers. The streams specified with this flag will be looked up directly without any glob pattern matching. Use this option if you don't need glob pattern matching; it is faster than check-streams.
streams-exclude-consumer-metricsREDIS_EXPORTER_STREAMS_EXCLUDE_CONSUMER_METRICSDon't collect per consumer metrics for streams (decreases amount of metrics and cardinality).
check-keys-batch-sizeREDIS_EXPORTER_CHECK_KEYS_BATCH_SIZEApproximate number of keys to process in each execution. This is basically the COUNT option that will be passed into the SCAN command as part of the execution of the key or key group metrics, see COUNT option. Larger value speeds up scanning. Still Redis is a single-threaded app, huge COUNT can affect production environment.
count-keysREDIS_EXPORTER_COUNT_KEYSComma separated list of patterns to count, eg: db3=sessions:* will count all keys with prefix sessions: from db 3. db defaults to 0 if omitted. Warning: The exporter runs SCAN to count the keys. This might not perform well on large databases.
scriptREDIS_EXPORTER_SCRIPTComma separated list of path(s) to Redis Lua script(s) for gathering extra metrics.
debugREDIS_EXPORTER_DEBUGVerbose debug output
log-formatREDIS_EXPORTER_LOG_FORMATLog format, valid options are txt (default) and json.
namespaceREDIS_EXPORTER_NAMESPACENamespace for the metrics, defaults to redis.
connection-timeoutREDIS_EXPORTER_CONNECTION_TIMEOUTTimeout for connection to Redis instance, defaults to \"15s\" (in Golang duration format)
web.listen-addressREDIS_EXPORTER_WEB_LISTEN_ADDRESSAddress to listen on for web interface and telemetry, defaults to 0.0.0.0:9121.
web.telemetry-pathREDIS_EXPORTER_WEB_TELEMETRY_PATHPath under which to expose metrics, defaults to /metrics.
redis-only-metricsREDIS_EXPORTER_REDIS_ONLY_METRICSWhether to also export go runtime metrics, defaults to false.
include-config-metricsREDIS_EXPORTER_INCL_CONFIG_METRICSWhether to include all config settings as metrics, defaults to false.
include-system-metricsREDIS_EXPORTER_INCL_SYSTEM_METRICSWhether to include system metrics like total_system_memory_bytes, defaults to false.
include-modules-metricsREDIS_EXPORTER_INCL_MODULES_METRICSWhether to collect Redis Modules metrics, defaults to false.
exclude-latency-histogram-metricsREDIS_EXPORTER_EXCLUDE_LATENCY_HISTOGRAM_METRICSDo not try to collect latency histogram metrics (to avoid WARNING, LOGGED ONCE ONLY: cmd LATENCY HISTOGRAM error on Redis < v7).
redact-config-metricsREDIS_EXPORTER_REDACT_CONFIG_METRICSWhether to redact config settings that include potentially sensitive information like passwords.
ping-on-connectREDIS_EXPORTER_PING_ON_CONNECTWhether to ping the redis instance after connecting and record the duration as a metric, defaults to false.
is-tile38REDIS_EXPORTER_IS_TILE38Whether to scrape Tile38 specific metrics, defaults to false.
is-clusterREDIS_EXPORTER_IS_CLUSTERWhether this is a redis cluster (Enable this if you need to fetch key level data on a Redis Cluster).
export-client-listREDIS_EXPORTER_EXPORT_CLIENT_LISTWhether to scrape Client List specific metrics, defaults to false.
export-client-portREDIS_EXPORTER_EXPORT_CLIENT_PORTWhether to include the client's port when exporting the client list. Warning: including the port increases the number of metrics generated and will make your Prometheus server take up more memory
skip-tls-verificationREDIS_EXPORTER_SKIP_TLS_VERIFICATIONWhether to skip TLS verification when the exporter connects to a Redis instance
tls-client-key-fileREDIS_EXPORTER_TLS_CLIENT_KEY_FILEName of the client key file (including full path) if the server requires TLS client authentication
tls-client-cert-fileREDIS_EXPORTER_TLS_CLIENT_CERT_FILEName the client cert file (including full path) if the server requires TLS client authentication
tls-server-key-fileREDIS_EXPORTER_TLS_SERVER_KEY_FILEName of the server key file (including full path) if the web interface and telemetry should use TLS
tls-server-cert-fileREDIS_EXPORTER_TLS_SERVER_CERT_FILEName of the server certificate file (including full path) if the web interface and telemetry should use TLS
tls-server-ca-cert-fileREDIS_EXPORTER_TLS_SERVER_CA_CERT_FILEName of the CA certificate file (including full path) if the web interface and telemetry should use TLS
tls-server-min-versionREDIS_EXPORTER_TLS_SERVER_MIN_VERSIONMinimum TLS version that is acceptable by the web interface and telemetry when using TLS, defaults to TLS1.2 (supports TLS1.0,TLS1.1,TLS1.2,TLS1.3).
tls-ca-cert-fileREDIS_EXPORTER_TLS_CA_CERT_FILEName of the CA certificate file (including full path) if the server requires TLS client authentication
set-client-nameREDIS_EXPORTER_SET_CLIENT_NAMEWhether to set client name to redis_exporter, defaults to true.
check-key-groupsREDIS_EXPORTER_CHECK_KEY_GROUPSComma separated list of LUA regexes for classifying keys into groups. The regexes are applied in specified order to individual keys, and the group name is generated by concatenating all capture groups of the first regex that matches a key. A key will be tracked under the unclassified group if none of the specified regexes matches it.
max-distinct-key-groupsREDIS_EXPORTER_MAX_DISTINCT_KEY_GROUPSMaximum number of distinct key groups that can be tracked independently per Redis database. If exceeded, only key groups with the highest memory consumption within the limit will be tracked separately, all remaining key groups will be tracked under a single overflow key group.
config-commandREDIS_EXPORTER_CONFIG_COMMANDWhat to use for the CONFIG command, defaults to CONFIG, , set to \"-\" to skip config metrics extraction.
basic-auth-usernameREDIS_EXPORTER_BASIC_AUTH_USERNAMEUsername for Basic Authentication with the redis exporter needs to be set together with basic-auth-password to be effective
basic-auth-passwordREDIS_EXPORTER_BASIC_AUTH_PASSWORDPassword for Basic Authentication with the redis exporter needs to be set together with basic-auth-username to be effective
include-metrics-for-empty-databasesREDIS_EXPORTER_INCL_METRICS_FOR_EMPTY_DATABASESWhether to emit db metrics (like db_keys) for empty databases
\n

Redis instance addresses can be tcp addresses: redis://localhost:6379, redis.example.com:6379 or e.g. unix sockets: unix:///tmp/redis.sock.
\nSSL is supported by using the rediss:// schema, for example: rediss://azure-ssl-enabled-host.redis.cache.windows.net:6380 (note that the port is required when connecting to a non-standard 6379 port, e.g. with Azure Redis instances).\\

\n

Command line settings take precedence over any configurations provided by the environment variables.

\n

Authenticating with Redis

\n

If your Redis instance requires authentication then there are several ways how you can supply
\na username (new in Redis 6.x with ACLs) and a password.

\n

You can provide the username and password as part of the address, see here for the official documentation of the redis:// scheme.
\nYou can set -redis.password-file=sample-pwd-file.json to specify a password file, it's used whenever the exporter connects to a Redis instance,
\nno matter if you're using the /scrape endpoint for multiple instances or the normal /metrics endpoint when scraping just one instance.
\nIt only takes effect when redis.password == \"\". See the contrib/sample-pwd-file.json for a working example, and make sure to always include the redis:// in your password file entries.

\n

An example for a URI including a password is: redis://<<username (optional)>>:<<PASSWORD>>@<<HOSTNAME>>:<<PORT>>

\n

Alternatively, you can provide the username and/or password using the --redis.user and --redis.password directly to the redis_exporter.

\n

If you want to use a dedicated Redis user for the redis_exporter (instead of the default user) then you need enable a list of commands for that user.
\nYou can use the following Redis command to set up the user, just replace <<<USERNAME>>> and <<<PASSWORD>>> with your desired values.

\n
ACL SETUSER <<<USERNAME>>> -@all +@connection +memory -readonly +strlen +config|get +xinfo +pfcount -quit +zcard +type +xlen -readwrite -command +client -wait +scard +llen +hlen +get +eval +slowlog +cluster|info +cluster|slots +cluster|nodes -hello -echo +info +latency +scan -reset -auth -asking ><<<PASSWORD>>>\n
\n

For monitoring a Sentinel-node you may use the following command with the right ACL:

\n
ACL SETUSER <<<USERNAME>>> -@all +@connection -command +client -hello +info -auth +sentinel|masters +sentinel|replicas +sentinel|slaves +sentinel|sentinels +sentinel|ckquorum ><<<PASSWORD>>>\n
\n

Run via Docker

\n

The latest release is automatically published to the Docker registry.

\n

You can run it like this:

\n
docker run -d --name redis_exporter -p 9121:9121 oliver006/redis_exporter
\n

Docker images are also published to the quay.io docker repo so you can pull them from there if for instance you run into rate limiting issues with Docker hub.

\n
docker run -d --name redis_exporter -p 9121:9121 quay.io/oliver006/redis_exporter
\n

The latest docker image contains only the exporter binary.
\nIf e.g. for debugging purposes, you need the exporter running
\nin an image that has a shell then you can run the alpine image:

\n
docker run -d --name redis_exporter -p 9121:9121 oliver006/redis_exporter:alpine
\n

If you try to access a Redis instance running on the host node, you'll need to add --network host so the
\nredis_exporter container can access it:

\n
docker run -d --name redis_exporter --network host oliver006/redis_exporter
\n

Run on Kubernetes

\n

Here is an example Kubernetes deployment configuration for how to deploy the redis_exporter as a sidecar to a Redis instance.

\n

Tile38

\n

Tile38 now has native Prometheus support for exporting server metrics and basic stats about number of objects, strings, etc.
\nYou can also use redis_exporter to export Tile38 metrics, especially more advanced metrics by using Lua scripts or the -check-keys flag.
\nTo enable Tile38 support, run the exporter with --is-tile38=true.

\n

What's exported

\n

Most items from the INFO command are exported,
\nsee documentation for details.
\nIn addition, for every database there are metrics for total keys, expiring keys and the average TTL for keys in the database.
\nYou can also export values of keys by using the -check-keys (or related) flag. The exporter will also export the size (or, depending on the data type, the length) of the key.
\nThis can be used to export the number of elements in (sorted) sets, hashes, lists, streams, etc.
\nIf a key is in string format and matches with --check-keys (or related) then its string value will be exported as a label in the key_value_as_string metric.

\n

If you require custom metric collection, you can provide comma separated list of path(s) to Redis Lua script(s) using the -script flag. If you pass only one script, you can omit comma. An example can be found in the contrib folder.

\n

The redis_memory_max_bytes metric

\n

The metric redis_memory_max_bytes will show the maximum number of bytes Redis can use.
\nIt is zero if no memory limit is set for the Redis instance you're scraping (this is the default setting for Redis).
\nYou can confirm that's the case by checking if the metric redis_config_maxmemory is zero or by connecting to the Redis instance via redis-cli and running the command CONFIG GET MAXMEMORY.

\n

What it looks like

\n

Example Grafana screenshots:
\n\"redis_exporter_screen_01\"

\n

\"redis_exporter_screen_02\"

\n

Grafana dashboard is available on grafana.com and/or github.com.

\n

Viewing multiple Redis simultaneously

\n

If running Redis Sentinel, it may be desirable to view the metrics of the various cluster members simultaneously. For this reason the dashboard's drop down is of the multi-value type, allowing for the selection of multiple Redis. Please note that there is a caveat; the single stat panels up top namely uptime, total memory use and clients do not function upon viewing multiple Redis.

\n

Using the mixin

\n

There is a set of sample rules, alerts and dashboards available in redis-mixin

\n

Upgrading from 0.x to 1.x

\n

PR #256 introduced breaking changes which were released as version v1.0.0.

\n

If you only scrape one Redis instance and use command line flags --redis.address
\nand --redis.password then you're most probably not affected.
\nOtherwise, please see PR #256 and this README for more information.

\n

Memory Usage Aggregation by Key Groups

\n

When a single Redis instance is used for multiple purposes, it is useful to be able to see how Redis memory is consumed among the different usage scenarios. This is particularly important when a Redis instance with no eviction policy is running low on memory as we want to identify whether certain applications are misbehaving (e.g. not deleting keys that are no longer in use) or the Redis instance needs to be scaled up to handle the increased resource demand. Fortunately, most applications using Redis will employ some sort of naming conventions for keys tied to their specific purpose such as (hierarchical) namespace prefixes which can be exploited by the check-keys, check-single-keys, and count-keys parameters of redis_exporter to surface the memory usage metrics of specific scenarios. Memory usage aggregation by key groups takes this one step further by harnessing the flexibility of Redis LUA scripting support to classify all keys on a Redis instance into groups through a list of user-defined LUA regular expressions so memory usage metrics can be aggregated into readily identifiable groups.

\n

To enable memory usage aggregation by key groups, simply specify a non-empty comma-separated list of LUA regular expressions through the check-key-groups redis_exporter parameter. On each aggregation of memory metrics by key groups, redis_exporter will set up a SCAN cursor through all keys for each Redis database to be processed in batches via a LUA script. Each key batch is then processed by the same LUA script on a key-by-key basis as follows:

\n
    \n
  1. The MEMORY USAGE command is called to gather memory usage for each key
    2. \n
  2. The specified LUA regexes are applied to each key in the specified order, and the group name that a given key belongs to will be derived from concatenating the capture groups of the first regex that matches the key. For example, applying the regex ^(.*)_[^_]+$ to the key key_exp_Nick would yield a group name of key_exp. If none of the specified regexes matches a key, the key will be assigned to the unclassified group
    3. \n
\n

Once a key has been classified, the memory usage and key counter for the corresponding group will be incremented in a local LUA table. This aggregated metrics table will then be returned alongside the next SCAN cursor position to redis_exporter when all keys in a batch have been processed, and redis_exporter can aggregate the data from all batches into a single table of grouped memory usage metrics for the Prometheus metrics scrapper.

\n

Besides making the full flexibility of LUA regex available for classifying keys into groups, the LUA script also has the benefit of reducing network traffic by executing all MEMORY USAGE commands on the Redis server and returning aggregated data to redis_exporter in a far more compact format than key-level data. The use of SCAN cursor over batches of keys processed by a server-side LUA script also helps prevent unbounded latency bubble in Redis's single processing thread, and the batch size can be tailored to specific environments via the check-keys-batch-size parameter.

\n

Scanning the entire key space of a Redis instance may sound a lttle extravagant, but it takes only a single scan to classify all keys into groups, and on a moderately sized system with ~780K keys and a rather complex list of 17 regexes, it takes an average of ~5s to perform a full aggregation of memory usage by key groups. Of course, the actual performance for specific systems will vary widely depending on the total number of keys, the number and complexity of regexes used for classification, and the configured batch size.

\n

To protect Prometheus from being overwhelmed by a large number of time series resulting from misconfigured group classification regular expression (e.g. applying the regular expression ^(.*)$ where each key will be classified into its own distinct group), a limit on the number of distinct key groups per Redis database can be configured via the max-distinct-key-groups parameter. If the max-distinct-key-groups limit is exceeded, only the key groups with the highest memory usage within the limit will be tracked separately, remaining key groups will be reported under a single overflow key group.

\n

Here is a list of additional metrics that will be exposed when memory usage aggregation by key groups is enabled:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
NameLabelsDescription
redis_key_group_countdb,key_groupNumber of keys in a key group
redis_key_group_memory_usage_bytesdb,key_groupMemory usage by key group
redis_number_of_distinct_key_groupsdbNumber of distinct key groups in a Redis database when the overflow group is fully expanded
redis_last_key_groups_scrape_duration_millisecondsDuration of the last memory usage aggregation by key groups in milliseconds
\n

Script to collect Redis lists and respective sizes.

\n

If using Redis version < 4.0, most of the helpful metrics which we need to gather based on length or memory is not possible via default redis_exporter.
\nWith the help of LUA scripts, we can gather these metrics.
\nOne of these scripts contrib/collect_lists_length_growing.lua will help to collect the length of redis lists.
\nWith this count, we can take following actions such as Create alerts or dashboards in Grafana or any similar tools with these Prometheus metrics.

\n

Development

\n

The tests require a variety of real Redis instances to not only verify correctness of the exporter but also
\ncompatibility with older versions of Redis and with Redis-like systems like KeyDB or Tile38.
\nThe docker-compose.yml file has service definitions for
\neverything that's needed.
\nYou can bring up the Redis test instances first by running make docker-env-up and then, every time you want to run the tests, you can run make docker-test. This will mount the current directory (with the .go source files) into a docker container and kick off the tests.
\nOnce you're done testing you can bring down the stack by running make docker-env-down.
\nOr you can bring up the stack, run the tests, and then tear down the stack, all in one shot, by running make docker-all.

\n

Note. Tests initialization can lead to unexpected results when using a persistent testing environment. When make docker-env-up is executed once and make docker-test is constantly run or stopped during execution, the number of keys in the database changes, which can lead to unexpected failures of tests. Use make docker-env-down periodacally to clean up as a workaround.

\n

Communal effort

\n

Open an issue or PR if you have more suggestions, questions or ideas about what to add.

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