  We address formation of stable dissipative surface solitons in the
exciton-polariton condensate in one-dimensional array of microcavity pillars
under the action of localized resonant pump acting in the edge resonator. We
show that localization degree and peak amplitudes of surface solitons can be
effectively controlled by the pump frequency and that the allowed energy gap of
periodic structure determines the energy range, where surface solitons can
form. One observes bistability at sufficiently large pump amplitudes and
nonlinearity-induced shift of the position of resonance peak from the allowed
energy band of the periodic array into its forbidden energy gap. Growth of the
spatial period of the array reduces coupling between pillars and currents from
surface pillar into bulk pillars that leads to the increase of the surface
soliton amplitude. Strong expansion into the depth of array occurs for pump
frequencies corresponding to the middle of the allowed energy band. Surface
solitons can be excited from the broadband Gaussian noise. Above certain
threshold noise level solitons from stable upper branch of the bistability
curve are excited, while below threshold solitons from the lower branch form.
