update backup article

content/blog/ovh-pca-backupninja-duplicity.md

@@ -1,7 +1,7 @@
 ---
 title: Using OVH PCA with backupninja
 description: Accessing the OVH Public cloud archive with the automated backup tool backupninja using its duplicity backend
-date: 2022-03-03
+date: 2024-03-06
 ---
 
 ## Motivation
@@ -36,17 +36,18 @@ OVH provides a cheap way for longterm storing backup data, the Public Cloud Arch
 
 
 ### On OVH  
-- Create a new user unter Cloud Archive → Project Management → Users & Roles
+- Create new Public Cloud project
+- Create a new user unter Public Cloud → Project Management → Users & Roles
   - Give the user the Role `ObjectStore operator`
   - Note username and **password**
-- Get TenandID
+- Get TenantID
   - click 3 dots on the right of the users row. Click Download OpenStack's RC file. Here you can select a region where the PCA should be set up
-  - Note the `OS_TENANT_ID`, here you also can extract `OS_USERNAME` and `OS_REGION_NAME`
+  - Note value of `OS_TENANT_ID`
 
 
-## Installation
-- Be sure to have at least version 0.8.21 of duplicity
-    - `pip3 install duplicity>=0.8.21 python-swiftclient python-keystoneclient`
+## Install python modules
+- Be sure to use latest issues, so install python modules with pip:
+    - `pip3 install duplicity python-swiftclient python-keystoneclient fasteners`
 
 ## Configuration
 - 3 files are used for this:
@@ -60,7 +61,7 @@ OVH provides a cheap way for longterm storing backup data, the Public Cloud Arch
 - Most important options are:
 
 ```
-options = --volsize 200 --archive-dir /tmp --file-prefix-manifest 'hot_' --file-prefix-signature 'hot_' --file-prefix-archive 'cold_'
+options = --archive-dir /tmp --file-prefix-manifest 'hot_' --file-prefix-signature 'hot_' --file-prefix-archive 'cold_'
 testconnect = no
 
 [gpg]
@@ -81,10 +82,24 @@ desturl = 'multi:///etc/ovh-config.json?mode=mirror&onfail=abort'
 - This is the **credentials** file for OVH. Get this [template](/texts/ovh-config.json)
   - adapt the `url` keys to something meaningful ex. `backedupserver1_cold` and `backedupserver2_hot`. This will be the names of the Cloud Archives resp. Object Stores
   - change `PCA_TENANTID` and `SWIFT_TENANTID` to noted `OS_TENANT_ID`
-  - change `PCA_USERNAME` and `SWIFT_USERNAME` to noted `OS_USERNAME`
+  - change `PCA_USERNAME` and `SWIFT_USERNAME` to noted username
   - do the same for Password and Regionname
 - Make sure minimal access rights with `chmod 600`  
 
-## testing
-- do a test run
-  - `backupninja -d -n`
+## backup
+- do a test run  
+	`backupninja -d -n`
+- backupninja should start every day at a predefined time as specified in `/etc/backupninja.conf` 
+
+## restore
+- create a `ovh-conf.json` file for the credentials like for backup
+- run (preferably as root, so user ownership can also be restored):  
+```sh
+duplicity --file-prefix-manifest 'hot_' \\
+		  --file-prefix-signature 'hot_' \\
+		  --file-prefix-archive 'cold_' \\
+		  --encrypt-key EXAMPLEKEYID \\
+		  --sign-key EXAMPLEKEYID \\
+		  --path-to-restore PATH/IN/BACKUP \\
+		  restore 'multi:///PATH/TO/ovh-config.json?mode=mirror&onfail=abort' LOCAL/SUBFOLDER
+```

static/texts/20_ovh_pca.dup

@@ -1,6 +1,6 @@
 # passed directly to duplicity
 
-options = --volsize 200 --archive-dir /tmp --file-prefix-manifest 'hot_' --file-prefix-signature 'hot_' --file-prefix-archive 'cold_'
+options = --archive-dir /tmp --file-prefix-manifest 'hot_' --file-prefix-signature 'hot_' --file-prefix-archive 'cold_'
 
 # default is 0, but set to 19 if you want to lower the priority.
 nicelevel = 19