Learning Circle : cidst #5 - initial commit

youngjin.han/dot-cdist/manifest/init

@@ -5,11 +5,16 @@ case "$__target_host" in
         __motd
         __timezone Asia/Seoul
 #        __my_computer
-        __colourful_file --colour yellow
+#        __colourful_file --colour yellow
+	__my_nginx_site $__target_host
     ;;
     jafo.laptop)
         __motd
         __timezone Asia/Seoul
-        __my_computer
+#        __my_computer
+    ;;
+    *)
+#        __my_nginx
+        __my_nginx_site $__target_host
     ;;
 esac

youngjin.han/dot-cdist/type/__my_nginx/manifest

@@ -0,0 +1,8 @@
+#!/bin/sh -e
+
+# update package index
+__apt_update_index
+
+require="__apt_update_index" __package nginx --state=present
+
+

youngjin.han/dot-cdist/type/__my_nginx_site/gencode-remote

@@ -0,0 +1 @@
+echo "sudo service nginx reload"

youngjin.han/dot-cdist/type/__my_nginx_site/gencode-remote~

@@ -0,0 +1 @@
+echo "service nginx reload"

youngjin.han/dot-cdist/type/__my_nginx_site/manifest

@@ -0,0 +1,42 @@
+#!/bin/sh -e
+
+nginx_config_dir="/etc/nginx/conf.d"
+domain="$__object_id"
+
+__directory /var/www/html/$domain \
+            --parents --mode 0644
+
+require="__directory//var/www/html/$domain" \
+	__file /var/www/html/$domain/index.html \
+    --source - --mode 0644 << EOF
+Hello Cdist!!!
+EOF
+
+__my_nginx
+
+# configure nginx
+require="__my_nginx" \
+        __file "$nginx_config_dir/${domain}.conf" \
+        --mode 0644 --source - << EOF
+server {
+        listen 80;
+        listen [::]:80;
+
+        server_name $domaini;
+
+        access_log  /var/log/nginx/access.log;
+
+        client_max_body_size 256m;
+
+        location / {
+                root   /var/www/html/$domain;
+                index  index.html index.htm;
+        }
+
+        error_page   500 502 503 504  /50x.html;
+
+        location = /50x.html {
+                root   /var/www/html/$domain;
+        }
+}
+EOF

youngjin.han/dot-cdist/type/__my_nginx_site/manifest~

@@ -0,0 +1,42 @@
+#!/bin/sh -e
+
+nginx_config_dir="/etc/nginx/conf.d"
+domain="$__object_id"
+
+__directory /var/www/html/$domain \
+            --parents --mode 0644
+
+require="__directory//var/www/html/$domain" \
+	__file /var/www/html/$domain/index.html \
+    --source - --mode 0644 << EOF
+Hello Cdist!!!
+EOF
+
+__my_nginx
+
+# configure nginx
+require="__my_nginx" \
+        __file "$nginx_config_dir/${domain}.conf" \
+        --mode 0644 --source - << EOF
+server {
+        listen 80;
+        listen [::]:80;
+
+        server_name $domain;
+
+        access_log  /var/log/nginx/access.log;
+
+        client_max_body_size 256m;
+
+        location / {
+                root   /var/www/html/$domain;
+                index  index.html index.htm;
+        }
+
+        error_page   500 502 503 504  /50x.html;
+
+        location = /50x.html {
+                root   /var/www/html/$domain;
+        }
+}
+EOF

youngjin.han/learning-node02-2020.org

@@ -1,3 +1,55 @@
+* 2020-05-13
+*** cdist #5: Generating Code & Exploring
+**** Lecture content
+***** Objective
+      - Understand how to *generate code* and when to use it
+      - Exploring explorers
+***** Code generation steps
+      - Modify the previously created type *__my_nginx_site*
+      - Read about cdist messaging
+      - If there was a change in the nginx configuration file, reload nginx
+***** Explorer steps
+      - Modify the *__my_nginx_site* type to use the *os explorer*
+      - Adjust your type to work on Alpine Linux and Debian (or two
+        other Linux distributions of your choice)
+      - Set the nginx configuration directory accordingly
+***** Documentation
+      - Explain the following in your cdist.org file
+      - What is the difference between gencode-remote and the remote code?
+      - What is the difference between gencode-local and gencode-remote?
+      - Locate a type that comes with upstream cdist that uses
+        gencode-local - which one is it? Why does it need gencode-local?
+* 2020-05-11
+*** cdist #4: Requirements
+**** Lecture content
+***** Objective
+****** Understand how requirements work
+***** DONE Create a new type *__my_nginx*
+      CLOSED: [2020-05-12 화 02:22]
+****** Make it a *singleton*
+****** Make it install nginx
+****** Configure a host with it
+****** Usually nginx is configured includes some files
+****** On the target host find out which directory nginx includes
+****** We name this directory *nginx_config_dir*
+***** DONE Create a new type *__my_nginx_site*
+      CLOSED: [2020-05-12 화 02:22]
+****** Assume the *object_id* is a *domain*
+****** In the __my_nginx_site create a file inside the *nginx_config_dir*
+****** The filename is *${domain}.conf*
+****** When using *__file*, it should *require* the *nginx package*
+******* Read about cdist dependencies
+****** The file should be a valid nginx configuration
+****** The *server name* should be set to the specified domain
+****** The *root* directive should point to /var/www/html/DOMAIN
+******* (replace DOMAIN with the actual domain)
+***** Use both types in the initial manifest to configure the target host
+****** Create at least two domains
+***** Configure the target host
+****** Verify that the configuration files are properly created
+***** Delete the nginx package manually on the target host
+***** Comment out *__my_nginx* from the initial manifest, keep the *__my_nginx_site*
+****** Explain the error that you get (in your cdist.org file)
 * 2020-05-08
 *** cdist #3: type parameters
 **** Lecture content