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zhangyue 32b9354795 OBS PERMS DOC 
Reviewed-by: Sabelnikov, Dmitriy <dmitriy.sabelnikov@t-systems.com>
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: zhangyue <zhangyue164@huawei.com>
Co-committed-by: zhangyue <zhangyue164@huawei.com>
2023-04-18 07:48:10 +00:00

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<a name="obs_40_0016"></a><a name="obs_40_0016"></a>
<h1 class="topictitle1">Granting an IAM User the Permissions Required to Perform Specific Operations on a Specific Bucket</h1>
<div id="body1588765301378"><div class="section" id="obs_40_0016__section43491717165116"><h4 class="sectiontitle">Scenario</h4><p id="obs_40_0016__p3431154410448">This topic describes how to grant an IAM user the permissions required to perform specific operations on an OBS bucket. Below describes how to grant the bucket deletion permission.</p>
<p id="obs_40_0016__p131221236151420">If you need to configure other permissions, select the corresponding actions from the <strong id="obs_40_0016__b1887111181379">Action Name</strong> drop-down list in the bucket policy. For details about the actions supported by OBS, see <a href="obs_40_0041.html#obs_40_0041__en-us_topic_0118394684_section1623516525350">Action/NotAction</a>.</p>
</div>
<div class="section" id="obs_40_0016__section106520378518"><h4 class="sectiontitle">Recommended Configuration</h4><p id="obs_40_0016__p103657437515">You are advised to use bucket policies to grant resource-level permissions to an IAM user.</p>
</div>
<div class="section" id="obs_40_0016__section786219432319"><h4 class="sectiontitle">Configuration Precautions</h4><p id="obs_40_0016__p4883191595712">After the configuration is complete, you can delete buckets using APIs. However, if you log in to OBS Console or OBS Browser+ to delete buckets, an error is reported indicating that you do not have required permissions.</p>
<p id="obs_40_0016__p20343339195015">This is because when you log in to OBS Console or OBS Browser+, more APIs (such as <strong id="obs_40_0016__b146471514264">ListAllMyBuckets</strong> and <strong id="obs_40_0016__b13906172152620">ListBucketVersions</strong>) are called to load the list of buckets and versioned objects, but your permissions do not cover those APIs. In such case, your access is denied or your operation is not allowed.</p>
<p id="obs_40_0016__p7807163365117">If you want an IAM user to delete buckets on OBS Console or OBS Browser+, allow the <strong id="obs_40_0016__b15892192319290">ListBucketVersions</strong> permission in the bucket policy and configure a custom IAM policy to grant the <strong id="obs_40_0016__b81561239102919">ListAllMyBuckets</strong> permission by referring to <a href="#obs_40_0016__section220405220511">Follow-up Procedure</a>.</p>
</div>
<div class="section" id="obs_40_0016__section18368164564"><h4 class="sectiontitle">Procedure</h4><ol id="obs_40_0016__ol170633855216"><li id="obs_40_0016__li973618915320"><span>In the navigation pane of OBS Console, choose <strong id="obs_40_0016__b817114045810">Object Storage</strong>.</span></li><li id="obs_40_0016__li11242915363"><span>In the bucket list, click the bucket name you want to go to the <strong id="obs_40_0016__b14821954974">Overview</strong> page.</span></li><li id="obs_40_0016__li13508181724617"><span>In the navigation pane, choose <strong id="obs_40_0016__b1224919532317">Permissions</strong>.</span></li><li id="obs_40_0016__li49461065486"><span>On the <strong id="obs_40_0016__b1581710142711">Bucket Policies</strong> page, click <strong id="obs_40_0016__b1681790132717">Create Bucket Policy</strong> under <strong id="obs_40_0016__b18818190172710">Custom Bucket Policies</strong>.</span></li><li id="obs_40_0016__li3552175452220"><span>Configure parameters for a bucket policy.</span><p><div class="fignone" id="obs_40_0016__fig136019591588"><span class="figcap"><b>Figure 1 </b>Configuring parameters for a bucket policy</span><br><span><img id="obs_40_0016__image10615592819" src="en-us_image_0000001385678272.png"></span></div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="obs_40_0016__table374341792315" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameters for creating a bucket policy</caption><thead align="left"><tr id="obs_40_0016__row27504174239"><th align="left" class="cellrowborder" valign="top" width="26.88%" id="mcps1.3.4.2.5.2.2.2.3.1.1"><p id="obs_40_0016__p107559176234"><strong id="obs_40_0016__b94846767511353">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="73.11999999999999%" id="mcps1.3.4.2.5.2.2.2.3.1.2"><p id="obs_40_0016__p1976317170239"><strong id="obs_40_0016__b91422716911353">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="obs_40_0016__row1246385816164"><td class="cellrowborder" valign="top" width="26.88%" headers="mcps1.3.4.2.5.2.2.2.3.1.1 "><p id="obs_40_0016__p04631584161">Policy Mode</p>
</td>
<td class="cellrowborder" valign="top" width="73.11999999999999%" headers="mcps1.3.4.2.5.2.2.2.3.1.2 "><p id="obs_40_0016__p19463175819166">Select <strong id="obs_40_0016__b127712493711353">Customized</strong>.</p>
</td>
</tr>
<tr id="obs_40_0016__row169652214311"><td class="cellrowborder" valign="top" width="26.88%" headers="mcps1.3.4.2.5.2.2.2.3.1.1 "><p id="obs_40_0016__p136964228313">Effect</p>
</td>
<td class="cellrowborder" valign="top" width="73.11999999999999%" headers="mcps1.3.4.2.5.2.2.2.3.1.2 "><p id="obs_40_0016__p106961221034">Select <strong id="obs_40_0016__b107996728411353">Allow</strong>.</p>
</td>
</tr>
<tr id="obs_40_0016__row8783617122317"><td class="cellrowborder" valign="top" width="26.88%" headers="mcps1.3.4.2.5.2.2.2.3.1.1 "><p id="obs_40_0016__p478519172231">Principal</p>
</td>
<td class="cellrowborder" valign="top" width="73.11999999999999%" headers="mcps1.3.4.2.5.2.2.2.3.1.2 "><ul id="obs_40_0016__ul1341145419174"><li id="obs_40_0016__li1024761941819">Choose <strong id="obs_40_0016__b7531155161315">Include</strong> &gt; <strong id="obs_40_0016__b135321551171319">Cloud service user</strong>.</li><li id="obs_40_0016__li4245545161814"><strong id="obs_40_0016__b59125451318">Account ID</strong>: Enter one account ID only, or enter an asterisk (*) to indicate that the policy takes effect on all users (including both registered and anonymous users).</li><li id="obs_40_0016__li1703812151919"><strong id="obs_40_0016__b3381404010535">User ID</strong>: Enter one or more user IDs separated by a comma (,).</li></ul>
</td>
</tr>
<tr id="obs_40_0016__row081741752319"><td class="cellrowborder" valign="top" width="26.88%" headers="mcps1.3.4.2.5.2.2.2.3.1.1 "><p id="obs_40_0016__p15821617102320">Resources</p>
</td>
<td class="cellrowborder" valign="top" width="73.11999999999999%" headers="mcps1.3.4.2.5.2.2.2.3.1.2 "><p id="obs_40_0016__p154218581644">Select <strong id="obs_40_0016__b46781731143514">Include</strong> &gt; <strong id="obs_40_0016__b19381834133516">Entire bucket</strong>.</p>
</td>
</tr>
<tr id="obs_40_0016__row3951641158"><td class="cellrowborder" valign="top" width="26.88%" headers="mcps1.3.4.2.5.2.2.2.3.1.1 "><p id="obs_40_0016__p10952134114519">Actions</p>
</td>
<td class="cellrowborder" valign="top" width="73.11999999999999%" headers="mcps1.3.4.2.5.2.2.2.3.1.2 "><ul id="obs_40_0016__ul1663065817513"><li id="obs_40_0016__li1563025812519"><strong id="obs_40_0016__b160478738111353">Include</strong></li><li id="obs_40_0016__li9382124645310"><strong id="obs_40_0016__b2621916135014">Action Name</strong>:<ul id="obs_40_0016__ul0371748105310"><li id="obs_40_0016__li10224301466">DeleteBucket</li><li id="obs_40_0016__li1996111505537"><span style="color:#3D3F43;">ListBucketVersions</span> (required when the authorized user needs to access OBS on OBS Console or OBS Browser+)</li></ul>
</li></ul>
<p id="obs_40_0016__p175400381720">To configure other permissions, select the corresponding actions. For details about the actions supported by OBS, see <a href="obs_40_0041.html#obs_40_0041__en-us_topic_0118394684_section1623516525350">Action/NotAction</a>.</p>
</td>
</tr>
</tbody>
</table>
</div>
</p></li><li id="obs_40_0016__li4406132611218"><span>Click <strong id="obs_40_0016__b2045315417430">OK</strong>. The bucket policy is created.</span></li></ol>
</div>
<div class="section" id="obs_40_0016__section220405220511"><a name="obs_40_0016__section220405220511"></a><a name="section220405220511"></a><h4 class="sectiontitle">Follow-up Procedure</h4><p id="obs_40_0016__p349115115368">To successfully delete buckets on OBS Console or OBS Browser+, you need to allow the <strong id="obs_40_0016__b99410010315">obs:bucket:ListAllMyBuckets</strong> (for listing buckets) permission in the IAM policy.</p>
<ol id="obs_40_0016__ol8623195417319"><li id="obs_40_0016__li10432131493113"><span>Log in to the management console using a cloud service account.</span></li><li id="obs_40_0016__li625685643115"><span>On the top menu bar, choose <strong id="obs_40_0016__b587704120115">Service List</strong> &gt; <strong id="obs_40_0016__b6878144115116">Management &amp; Deployment</strong> &gt; <strong id="obs_40_0016__b9878241815">Identity and Access Management</strong>. The IAM console is displayed.</span></li><li id="obs_40_0016__li1848615103345"><span>In the navigation pane, choose <strong id="obs_40_0016__b127792011191410">Permissions</strong>.</span></li><li id="obs_40_0016__li1388483016366"><span>Click <strong id="obs_40_0016__b111271552914">Create Custom Policy</strong> in the upper right corner.</span></li><li id="obs_40_0016__li1161395452712"><span>Configure parameters for a custom policy.</span><p><div class="fignone" id="obs_40_0016__fig2216161311520"><span class="figcap"><b>Figure 2 </b>Configuring a custom policy</span><br><span><img id="obs_40_0016__image921815136158" src="en-us_image_0000001385362028.png"></span></div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="obs_40_0016__table6375112782815" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameters for configuring a custom policy</caption><thead align="left"><tr id="obs_40_0016__row6375927132818"><th align="left" class="cellrowborder" valign="top" width="24.48%" id="mcps1.3.5.3.5.2.2.2.3.1.1"><p id="obs_40_0016__p23757272286"><strong id="obs_40_0016__b204053214211353">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="75.52%" id="mcps1.3.5.3.5.2.2.2.3.1.2"><p id="obs_40_0016__p63751027152820"><strong id="obs_40_0016__b94244928311353">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="obs_40_0016__row17375102752819"><td class="cellrowborder" valign="top" width="24.48%" headers="mcps1.3.5.3.5.2.2.2.3.1.1 "><p id="obs_40_0016__p1737572772816">Policy Name</p>
</td>
<td class="cellrowborder" valign="top" width="75.52%" headers="mcps1.3.5.3.5.2.2.2.3.1.2 "><p id="obs_40_0016__p83758278280">Name of the custom policy</p>
</td>
</tr>
<tr id="obs_40_0016__row1937592712288"><td class="cellrowborder" valign="top" width="24.48%" headers="mcps1.3.5.3.5.2.2.2.3.1.1 "><p id="obs_40_0016__p173753272284">Policy View</p>
</td>
<td class="cellrowborder" valign="top" width="75.52%" headers="mcps1.3.5.3.5.2.2.2.3.1.2 "><p id="obs_40_0016__p17375102714285">Set this parameter based on your own habits. <strong id="obs_40_0016__b201724469172">Visual editor</strong> is used here.</p>
</td>
</tr>
<tr id="obs_40_0016__row133751227142812"><td class="cellrowborder" valign="top" width="24.48%" headers="mcps1.3.5.3.5.2.2.2.3.1.1 "><p id="obs_40_0016__p203751027172816">Policy Content</p>
</td>
<td class="cellrowborder" valign="top" width="75.52%" headers="mcps1.3.5.3.5.2.2.2.3.1.2 "><ul id="obs_40_0016__ul312618263319"><li id="obs_40_0016__li112652673110">Select <strong id="obs_40_0016__b28255102711353">Allow</strong>.</li><li id="obs_40_0016__li1952919359">Select <strong id="obs_40_0016__b29871293911353">Object Storage Service (OBS)</strong>.</li><li id="obs_40_0016__li813512281313">Select <strong id="obs_40_0016__b74550775011353">obs:bucket:ListAllMyBuckets</strong> from the actions.</li><li id="obs_40_0016__li1991741116547">Select <strong id="obs_40_0016__b24821520181313">All</strong> for resources.</li></ul>
</td>
</tr>
<tr id="obs_40_0016__row154361617514"><td class="cellrowborder" valign="top" width="24.48%" headers="mcps1.3.5.3.5.2.2.2.3.1.1 "><p id="obs_40_0016__p83756273285">Scope</p>
</td>
<td class="cellrowborder" valign="top" width="75.52%" headers="mcps1.3.5.3.5.2.2.2.3.1.2 "><p id="obs_40_0016__p1037542711283">The default value is <strong id="obs_40_0016__b6254525056">Global services</strong>.</p>
</td>
</tr>
</tbody>
</table>
</div>
</p></li><li id="obs_40_0016__li1293324623719"><span>Click <strong id="obs_40_0016__b139894679711353">OK</strong>. The custom policy is created.</span></li><li id="obs_40_0016__li81339157389"><span><a href="https://docs.otc.t-systems.com/en-us/usermanual/iam/iam_01_0030.html" target="_blank" rel="noopener noreferrer">Create a user group and assign permissions</a>.</span><p><p id="obs_40_0016__p1312812258417">Add the created custom policy to the user group by following the instructions in the IAM document.</p>
</p></li><li id="obs_40_0016__li12273529113919"><span>Add the IAM user you want to authorize to the created user group by referring to <a href="https://docs.otc.t-systems.com/en-us/usermanual/iam/iam_01_0031.html" target="_blank" rel="noopener noreferrer">Creating a User and Adding the User to a User Group</a>.</span><p><div class="note" id="obs_40_0016__note1402619155515"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="obs_40_0016__p37253183814">Due to data caching, it takes about 10 to 15 minutes for a custom policy to take effect after the authorization.</p>
</div></div>
</p></li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="obs_40_0013.html">Granting Permissions to an IAM User Under the Account</a></div>
</div>
</div>
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