1OCF_HEARTBEAT_APACHE(7) OCF resource agents OCF_HEARTBEAT_APACHE(7)
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6 ocf_heartbeat_apache - Manages an Apache web server instance
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9 apache [start | stop | status | monitor | meta-data | validate-all]
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12 This is the resource agent for the Apache web server. This resource
13 agent operates both version 1.x and version 2.x Apache servers.
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15 The start operation ends with a loop in which monitor is repeatedly
16 called to make sure that the server started and that it is operational.
17 Hence, if the monitor operation does not succeed within the start
18 operation timeout, the apache resource will end with an error status.
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20 The monitor operation by default loads the server status page which
21 depends on the mod_status module and the corresponding configuration
22 file (usually /etc/apache2/mod_status.conf). Make sure that the server
23 status page works and that the access is allowed *only* from localhost
24 (address 127.0.0.1). See the statusurl and testregex attributes for
25 more details.
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27 See also http://httpd.apache.org/
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30 configfile
31 The full pathname of the Apache configuration file. This file is
32 parsed to provide defaults for various other resource agent
33 parameters. (unique, optional, string, default
34 /etc/apache2/httpd.conf)
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36 httpd
37 The full pathname of the httpd binary (optional). (optional,
38 string, default /usr/sbin/httpd)
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40 port
41 A port number that we can probe for status information using the
42 statusurl. This will default to the port number found in the
43 configuration file, or 80, if none can be found in the
44 configuration file. .sp
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46 (optional, integer, no default)
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48 statusurl
49 The URL to monitor (the apache server status page by default). If
50 left unspecified, it will be inferred from the apache configuration
51 file. .sp If you set this, make sure that it succeeds *only* from
52 the localhost (127.0.0.1). Otherwise, it may happen that the
53 cluster complains about the resource being active on multiple
54 nodes. (optional, string, no default)
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56 testregex
57 Regular expression to match in the output of statusurl. Case
58 insensitive. (optional, string, default exists, but impossible to
59 show in a human readable format (try grep testregex))
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61 client
62 Client to use to query to Apache. If not specified, the RA will try
63 to find one on the system. Currently, wget and curl are supported.
64 For example, you can set this parameter to "curl" if you prefer
65 that to wget. (optional, string, no default)
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67 testurl
68 URL to test. If it does not start with "http", then it's considered
69 to be relative to the Listen address. (optional, string, no
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72 testregex10
73 Regular expression to match in the output of testurl. Case
74 insensitive. (optional, string, no default)
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76 testconffile
77 A file which contains test configuration. Could be useful if you
78 have to check more than one web application or in case sensitive
79 info should be passed as arguments (passwords). Furthermore, using
80 a config file is the only way to specify certain parameters. .sp
81 Please see README.webapps for examples and file description.
82 (optional, string, no default)
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84 testname
85 Name of the test within the test configuration file. (optional,
86 string, no default)
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88 options
89 Extra options to apply when starting apache. See man httpd(8).
90 (optional, string, no default)
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92 envfiles
93 Files (one or more) which contain extra environment variables. If
94 you want to prevent script from reading the default file, set this
95 parameter to empty string. (optional, string, default
96 /etc/apache2/envvars)
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99 This resource agent supports the following actions (operations):
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101 start
102 Starts the resource. Suggested minimum timeout: 40s.
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104 stop
105 Stops the resource. Suggested minimum timeout: 60s.
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107 status
108 Performs a status check. Suggested minimum timeout: 30s.
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110 monitor
111 Performs a detailed status check. Suggested minimum timeout: 20s.
112 Suggested interval: 10.
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114 meta-data
115 Retrieves resource agent metadata (internal use only). Suggested
116 minimum timeout: 5.
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118 validate-all
119 Performs a validation of the resource configuration. Suggested
120 minimum timeout: 5.
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123 The following is an example configuration for a apache resource using
124 the crm(8) shell:
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126 primitive p_apache ocf:heartbeat:apache \
127 op monitor depth="0" timeout="20s" interval="10"
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130 http://www.linux-ha.org/wiki/apache_(resource_agent)
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133 Linux-HA contributors (see the resource agent source for information
134 about individual authors)
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138resource-agents 3.9.2 07/08/2011 OCF_HEARTBEAT_APACHE(7)