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| -rw-r--r-- | doc/manual/packages/s3-substituter.xml | 202 |
1 files changed, 107 insertions, 95 deletions
diff --git a/doc/manual/packages/s3-substituter.xml b/doc/manual/packages/s3-substituter.xml index bcd91cfdbccd..ea654392c6b1 100644 --- a/doc/manual/packages/s3-substituter.xml +++ b/doc/manual/packages/s3-substituter.xml @@ -12,8 +12,49 @@ from Amazon S3 and S3 compatible services. This uses the same <emphasis>binary</emphasis> cache mechanism that Nix usually uses to fetch prebuilt binaries from <uri>cache.nixos.org</uri>.</para> +<para>The following options can be specified as URL parameters to +the S3 URL:</para> + +<variablelist> + <varlistentry><term><literal>profile</literal></term> + <listitem> + <para> + The name of the AWS configuration profile to use. By default + Nix will use the <literal>default</literal> profile. + </para> + </listitem> + </varlistentry> + + <varlistentry><term><literal>region</literal></term> + <listitem> + <para> + The region of the S3 bucket. <literal>us–east-1</literal> by + default. + </para> + + <para> + If your bucket is not in <literal>us–east-1</literal>, you + should always explicitly specify the region parameter. + </para> + </listitem> + </varlistentry> + + <varlistentry><term><literal>endpoint</literal></term> + <listitem> + <para> + The URL to your S3-compatible service, for when not using + Amazon S3. Do not specify this value if you're using Amazon + S3. + </para> + <note><para>This endpoint must support HTTPS and will use + path-based addressing instead of virtual host based + addressing.</para></note> + </listitem> + </varlistentry> +</variablelist> + <para>In this example we will use the bucket named -<literal>example-bucket</literal>.</para> +<literal>example-nix-cache</literal>.</para> <section xml:id="ssec-s3-substituter-anonymous-reads"> <title>Anonymous Reads to your S3-compatible binary cache</title> @@ -24,65 +65,56 @@ fetch prebuilt binaries from <uri>cache.nixos.org</uri>.</para> cache.</para> <para>For AWS S3 the binary cache URL for example bucket will be - exactly <uri>https://example-bucket.s3.amazonaws.com</uri>. For S3 - compatible binary caches ago have to consult your software's - documentation.</para> + exactly <uri>https://example-nix-cache.s3.amazonaws.com</uri> or + <uri>s3://example-nix-cache</uri>. For S3 compatible binary caches, + consult that cache's documentation.</para> <para>Your bucket will need the following bucket policy:</para> - <programlisting> -<![CDATA[ + <programlisting><![CDATA[ { - "Id": "DirectReads", - "Version": "2012-10-17", - "Statement": [ - { - "Sid": "AlowDirectReads", - "Action": [ - "s3:GetObject" - ], - "Effect": "Allow", - "Resource": "arn:aws:s3:::example-bucket/*", - "Principal": "*" - } - ] + "Id": "DirectReads", + "Version": "2012-10-17", + "Statement": [ + { + "Sid": "AlowDirectReads", + "Action": [ + "s3:GetObject", + "s3:GetBucketLocation" + ], + "Effect": "Allow", + "Resource": [ + "arn:aws:s3:::example-nix-cache", + "arn:aws:s3:::example-nix-cache/*" + ], + "Principal": "*" + } + ] } -]]> -</programlisting> +]]></programlisting> </section> <section xml:id="ssec-s3-substituter-authenticated-reads"> <title>Authenticated Reads to your S3 binary cache</title> <para>For AWS S3 the binary cache URL for example bucket will be - exactly <uri>s3://example-bucket</uri>.</para> + exactly <uri>s3://example-nix-cache</uri>.</para> <para>Nix will use the <link xlink:href="https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/credentials.html#credentials-default.">default credential provider chain</link> for authenticating requests to Amazon S3.</para> - <para>Nix supports authenticated writes to S3 compatible binary - caches but only supports Authenticated reads from Amazon S3. - Additionally, the following limitations are in place for - authenticated reads:</para> - - <itemizedlist> - <listitem><para>The bucket must actually be hosted by Amazon S3 and - <emphasis>not</emphasis> an S3 compatible - service.</para></listitem> - - <listitem><para>The bucket must be within the - <literal>us-east-1</literal> region.</para></listitem> - - <listitem><para>The Amazon credentials, if stored in a credential - profile, must be stored in the <literal>default</literal> - profile.</para></listitem> - </itemizedlist> + <para>Nix supports authenticated reads from Amazon S3 and S3 + compatible binary caches.</para> <para>Your bucket will need a bucket policy allowing the desired - users to perform the <literal>s3:GetObject</literal> action on all - objects in the bucket.</para> + users to perform the <literal>s3:GetObject</literal> and + <literal>s3:GetBucketLocation</literal> action on all objects in the + bucket. The anonymous policy in <xref + linkend="ssec-s3-substituter-anonymous-reads" /> can be updated to + have a restricted <literal>Principal</literal> to support + this.</para> </section> @@ -91,69 +123,49 @@ fetch prebuilt binaries from <uri>cache.nixos.org</uri>.</para> <para>Nix support fully supports writing to Amazon S3 and S3 compatible buckets. The binary cache URL for our example bucket will - be <uri>s3://example-bucket</uri>.</para> + be <uri>s3://example-nix-cache</uri>.</para> <para>Nix will use the <link xlink:href="https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/credentials.html#credentials-default.">default credential provider chain</link> for authenticating requests to Amazon S3.</para> - <para>The following options can be specified as URL parameters to - the S3 URL:</para> - <variablelist> - <varlistentry><term><literal>profile</literal></term> - <listitem> - <para> - The name of the AWS configuration profile to use. By default - Nix will use the <literal>default</literal> profile. - </para> - </listitem> - </varlistentry> - - <varlistentry><term><literal>region</literal></term> - <listitem> - <para> - The region of the S3 bucket. <literal>us–east-1</literal> by - default. - </para> - </listitem> - </varlistentry> - - <varlistentry><term><literal>endpoint</literal></term> - <listitem> - <para> - The URL to your S3-compatible service, for when not using - Amazon S3. Do not specify this value if you're using Amazon - S3. - </para> - <note><para>This endpoint must support HTTPS and will use - path-based addressing instead of virtual host based - addressing.</para></note> - </listitem> - </varlistentry> - </variablelist> - - <example><title>Uploading with non-default credential profile for Amazon S3</title> - <para><command>nix copy --to ssh://machine nixpkgs.hello s3://example-bucket?profile=cache-upload</command></para> + <para>Your account will need the following IAM policy to + upload to the cache:</para> + + <programlisting><![CDATA[ +{ + "Version": "2012-10-17", + "Statement": [ + { + "Sid": "UploadToCache", + "Effect": "Allow", + "Action": [ + "s3:AbortMultipartUpload", + "s3:GetBucketLocation", + "s3:GetObject", + "s3:ListBucket", + "s3:ListBucketMultipartUploads", + "s3:ListMultipartUploadParts", + "s3:ListObjects", + "s3:PutObject" + ], + "Resource": [ + "arn:aws:s3:::example-nix-cache", + "arn:aws:s3:::example-nix-cache/*" + ] + } + ] +} +]]></programlisting> + + + <example><title>Uploading with a specific credential profile for Amazon S3</title> + <para><command>nix copy --to 's3://example-nix-cache?profile=cache-upload&region=eu-west-2' nixpkgs.hello</command></para> </example> <example><title>Uploading to an S3-Compatible Binary Cache</title> - <para><command>nix copy --to ssh://machine nixpkgs.hello s3://example-bucket?profile=cache-upload&endpoint=minio.example.com</command></para> + <para><command>nix copy --to 's3://example-nix-cache?profile=cache-upload&endpoint=minio.example.com' nixpkgs.hello</command></para> </example> - - <para>The user writing to the bucket will need to perform the - following actions against the bucket:</para> - - <itemizedlist> - <listitem><para><literal>s3:ListBucket</literal></para></listitem> - <listitem><para><literal>s3:GetBucketLocation</literal></para></listitem> - <listitem><para><literal>s3:ListObjects</literal></para></listitem> - <listitem><para><literal>s3:GetObject</literal></para></listitem> - <listitem><para><literal>s3:PutObject</literal></para></listitem> - <listitem><para><literal>s3:ListBucketMultipartUploads</literal></para></listitem> - <listitem><para><literal>s3:CreateMultipartUpload</literal></para></listitem> - <listitem><para><literal>s3:ListMultipartUploadParts</literal></para></listitem> - <listitem><para><literal>s3:AbortMultipartUpload</literal></para></listitem> - </itemizedlist> </section> </section> |