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@@ -31,6 +31,26 @@ Setting this is optional. If you do not set this, the `COMPOSE_PROJECT_NAME` def
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Specify the file containing the compose configuration. If not provided, Compose looks for a file named `docker-compose.yml` in the current directory and then each parent directory in succession until a file by that name is found.
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+### COMPOSE\_API\_VERSION
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+
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+The Docker API only supports requests from clients which report a specific
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+version. If you receive a `client and server don't have same version error` using
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+`docker-compose`, you can workaround this error by setting this environment
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+variable. Set the version value to match the server version.
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+
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+Setting this variable is intended as a workaround for situations where you need
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+to run temporarily with a mismatch between the client and server version. For
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+example, if you can upgrade the client but need to wait to upgrade the server.
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+
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+Running with this variable set and a known mismatch does prevent some Docker
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+features from working properly. The exact features that fail would depend on the
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+Docker client and server versions. For this reason, running with this variable
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+set is only intended as a workaround and it is not officially supported.
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+
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+If you run into problems running with this set, resolve the mismatch through
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+upgrade and remove this setting to see if your problems resolve before notifying
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+support.
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+
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### DOCKER\_HOST
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Sets the URL of the `docker` daemon. As with the Docker client, defaults to `unix:///var/run/docker.sock`.
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Daniel Nephin