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178 task. Then next task is executed. ``serial`` sets how many hosts at a time to run at a time to the |
178 task. Then next task is executed. ``serial`` sets how many hosts at a time to run at a time to the |
179 end of subplay. |
179 end of subplay. |
180 * With ``free`` strategy tasks are executed without waiting for completion of the same task on every |
180 * With ``free`` strategy tasks are executed without waiting for completion of the same task on every |
181 host. |
181 host. |
182 |
182 |
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183 Special variables |
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184 ================= |
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185 |
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186 You can dump any variable by ``debug`` task in a playbook or using mudule:: |
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187 |
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188 ansible $host -m debug -a var=groups |
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189 |
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190 * ``vars`` holds everything! |
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191 * ``hosts`` holds all inventory definitions |
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192 * ``groups`` holds info about grouping of hosts |
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193 * ``ansible_facts`` all collected facts about current host |
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194 |
183 Blocks |
195 Blocks |
184 ====== |
196 ====== |
185 |
197 |
186 To avoid repetitive checks or to handle failures use ``block``:: |
198 To avoid repetitive checks or to handle failures use ``block``:: |
187 |
199 |