動体検出としてはmotion一番有名だと思っているが、
今回は外部トリガー（例えば、焦電センサーとかSlackからの要求とか）に対応したく
ZoneMinderを使用してみた。
・motion
導入事例が多い、外部トリガーには対応していない？
・ ZoneMinder (github)
導入事例がmotionに比べて少ない、設定項目が多く、プログラム自体も巨大？
外部トリガーが出来るっぽい
ただし、ZoneMinderはwebサーバーにapacheが必要みたい。
なんとなく軽量にしてみたく、nginxを使用するように変更。
1.インストール
sudo apt-get install zoneminder
sudo apt-get install nginx-extras fcgiwrap php7.0-fpm
sudo apt-get install mariadb-server
２．セットアップ
(1) nginx
/etc/nginx/sites-available/default の変更
・
cgi-binとfastcgi_paramsのところ
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| ## | |
| # You should look at the following URL's in order to grasp a solid understanding | |
| # of Nginx configuration files in order to fully unleash the power of Nginx. | |
| # http://wiki.nginx.org/Pitfalls | |
| # http://wiki.nginx.org/QuickStart | |
| # http://wiki.nginx.org/Configuration | |
| # | |
| # Generally, you will want to move this file somewhere, and start with a clean | |
| # file but keep this around for reference. Or just disable in sites-enabled. | |
| # | |
| # Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples. | |
| ## | |
| # Default server configuration | |
| # | |
| server { | |
| listen 80 default_server; | |
| listen [::]:80 default_server; | |
| # SSL configuration | |
| # | |
| # listen 443 ssl default_server; | |
| # listen [::]:443 ssl default_server; | |
| # | |
| # Note: You should disable gzip for SSL traffic. | |
| # See: https://bugs.debian.org/773332 | |
| # | |
| # Read up on ssl_ciphers to ensure a secure configuration. | |
| # See: https://bugs.debian.org/765782 | |
| # | |
| # Self signed certs generated by the ssl-cert package | |
| # Don't use them in a production server! | |
| # | |
| # include snippets/snakeoil.conf; | |
| root /var/www/html; | |
| # Add index.php to the list if you are using PHP | |
| index index.html index.htm index.nginx-debian.html; | |
| server_name _; | |
| location / { | |
| # First attempt to serve request as file, then | |
| # as directory, then fall back to displaying a 404. | |
| try_files $uri $uri/ =404; | |
| } | |
| # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 | |
| # | |
| #location ~ \.php$ { | |
| # include snippets/fastcgi-php.conf; | |
| # | |
| # # With php7.0-cgi alone: | |
| # fastcgi_pass 127.0.0.1:9000; | |
| # # With php7.0-fpm: | |
| # fastcgi_pass unix:/run/php/php7.0-fpm.sock; | |
| #} | |
| # deny access to .htaccess files, if Apache's document root | |
| # concurs with nginx's one | |
| # | |
| #location ~ /\.ht { | |
| # deny all; | |
| #} | |
| location /zoneminder/cgi-bin { | |
| gzip off; | |
| root /usr/lib; | |
| include fastcgi_params; | |
| fastcgi_param SCRIPT_FILENAME /usr/lib/zoneminder/cgi-bin/nph-zms; | |
| fastcgi_intercept_errors on; | |
| fastcgi_pass unix:/var/run/fcgiwrap.socket; | |
| } | |
| location /zoneminder/ { | |
| gzip off; | |
| alias /usr/share/zoneminder/www/; | |
| index index.php; | |
| location ~ \.php$ { | |
| include fastcgi_params; | |
| # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini | |
| fastcgi_param SCRIPT_FILENAME $request_filename; | |
| fastcgi_intercept_errors on; | |
| fastcgi_pass unix:/run/php/php7.0-fpm.sock; | |
| } | |
| location ~* /zoneminder/.*\.(txt|log)$ { | |
| deny all; | |
| } | |
| location ~* /zoneminder/.*\.(m4a|mp4|mov)$ { | |
| mp4; | |
| mp4_buffer_size 5M; | |
| mp4_max_buffer_size 10M; | |
| } | |
| } | |
| } | |
| # Virtual Host configuration for example.com | |
| # | |
| # You can move that to a different file under sites-available/ and symlink that | |
| # to sites-enabled/ to enable it. | |
| # | |
| #server { | |
| # listen 80; | |
| # listen [::]:80; | |
| # | |
| # server_name example.com; | |
| # | |
| # root /var/www/example.com; | |
| # index index.html; | |
| # | |
| # location / { | |
| # try_files $uri $uri/ =404; | |
| # } | |
| #} |
chown www-data:www-data /etc/zm/zm.conf
systemctl restart nginx
（２）mariadb
※ユーザー・パスワードは適宜変更、 /etc/zm/zm.confと合わせる
create user 'zmuser'@'localhost' identified by 'zmpass';
grant all on zm .* to zmuser;
create database zm;
mysql -u zmuser -p zm < /usr/share/zoneminder/db/zm_create.sql
（３）php
/etc/php/7.0/fpm/php.ini の変更
「date.timezone = "Asia/Tokyo"」
再起動
/etc/init.d/php7.0-fpm restart
（４）カメラへのアクセス権付与
usermod -aG video www-data
※要再起動
（５）その他
/etc/sysctl.confを変更
sysctl -p
8/30 追記
ここに設定方法があった。
使用しているNanoPi NEOは256MBだから半分の128MBにした
kernel.shmall = 32768
kernel.shmmax = 134217728
ipcs -l 実行結果は以下の通り
------ Messages Limits --------
max queues system wide = 989
max size of message (bytes) = 8192
default max size of queue (bytes) = 16384
------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 131072 = 128MB
max total shared memory (kbytes) = 131072 = 128MB
min seg size (bytes) = 1
------ Semaphore Limits --------
max number of arrays = 128
max semaphores per array = 250
max semaphores system wide = 32000
max ops per semop call = 32
semaphore max value = 32767
（６）webページにアクセス
http://[NanoPiNeoのIPアドレス]/zoneminder/index.php
設定 > Paths > PATH_ZMSを変更
/zoneminder/cgi-bin/nph-zms
３．映像確認
こんな感じ
手順まとめると大したことなかったけど、
もろもろ1週間位かかっているOrz
最後に自動起動するようにしておく
systemctl enable zoneminder
systemctl start zoneminder
あと、ディスク容量が逼迫した場合に古い記録から消す設定
How can I stop ZoneMinder filling up my disk?
http://zoneminder.readthedocs.io/en/latest/faq.html
次は検知時の映像をslackに投稿するぞー！
参考
・https://chiralsoftware.com/idea/nginx-ubuntu-and-zoneminder
